Thursday, March 31, 2011

Audi R8 LED Headlights - Tech Dept

Are incandescent headlights on their last flicker? They lit the road ahead for almost a century, but interest in incandescence, or light made with heat by pushing current through a thin filament, is going cold.


Light-emitting diodes, or Leds, promise greater light for less power and waste heat. A

lready used in taillights and turn signals, the LEDs’ steadily improving efficiency means this technology is moving up to the big job. They’ll be the standard-equipment headlights on the 2010 Audi R8 V-10 and optional on the V-8 R8. U.S. prices aren’t finalized, but ­Europeans will pay about $5000 for the set.

Why is Audi pursuing this technology? Simple: LEDs make more light than heat and take up less space. There is another benefit, too: LEDs can be arranged into whatever shapes designers and engineers demand—especially important to a style-leading brand such as Audi.

The common incandescent halogen bulb shines by electrifying and superheating a tungsten filament sealed in halogen gas. Less than five percent of the power consumed results in light, the rest is heat that is wasted. The ratio is somewhat better with high-intensity-discharge, or HID, headlights, where instead of passing over a solid filament, the current arcs between two filaments through a cloud of light-amplifying xenon gas.


Instead of incandescent, an LED is electroluminescent. Light is produced by electrifying a material, in this case a silicon chip, which is treated to be a diode, or a conductor through which electrons flow only one way. Varying the voltage to both sides of the diode excites the electrons, and their movement creates photons, or light.

Thanks to chip improvements, LED output is whiter and also brighter, from 15 lumens per watt in 2001, when Audi started its research, to 60 today, says Audi’s light engineering director, Stephan Berlitz. In the R8, the LEDs are clustered—14 for the low beam, eight for the high beam—and cooled by fans to keep internal temps below a diode-killing 300 degrees F. The fans also circulate warm air to defrost the lenses on cold mornings.

Berlitz says costs will remain high until more automakers adopt LED technology. Until then, LED hype will generate more heat than light.

Wednesday, March 30, 2011

New LED Lights Have a Bright Future for Communication

The University of California, Riverside will lead a multi-campus effort that could reshape the way we communicate and navigate in homes, offices, airports and yes – even the way billboards might contact us on city streets.


The Center for Ubiquitous Communication by Light (UC-Light) will be funded with $3.5 million from the Multicampus Research Program and Initiatives (MRPI) competition within the University of California system.

“PDAs, HDTV, information kiosks, computers and laptops all can be interconnected wirelessly through visible light,” said Zhengyuan Xu, a professor of electrical engineering at the Bourns College of Engineering, the principal investigator and director of the new research center.

He will work with researchers with expertise in communication, navigation, transportation, networking, and circuit integration from UC Riverside, UC Berkeley, UC Davis, UC Merced and the Lawrence Berkeley National Laboratory to take advantage of the communication properties presented by led lights.

The project is anticipated to begin in January 2010 and run for five years.

Xu said the potential impacts of the research are huge. “With a proper data interface to a wired data network such as Ethernet, they make it possible to build very low-cost communication and navigation systems on existing Lighting infrastructure.”

The research results will likely have implications for current broadband wireless communication, HDTV signals, traffic navigation and directions, retrieving information via cell phones from electronic billboards, or allowing the refrigerator light to transmit information about what is needed on the next trip to the grocery store. Results will be especially important in areas where radio frequencies are limited, such as hospitals and airplanes.

“The visible light spectrum is several orders of magnitude larger than the crowded radiofrequency (RF) spectrum, and thus has huge potential for low cost and high data rate communication,” Xu said.

Discoveries will lead to an increase in related intellectual property, which would foster further technology transfer from the university to the commercial world, and could replace or supplement current wireless communication networks.

The Center will establish an advisory board consisting of invited experts and representatives from industry, government and academia. The researchers will consult advisory board members informally throughout the year, and the board will have a formal face-to-face meeting once per year.

Just like centralized heating systems contributed to the proliferations of rooms in a house, the advent of indoor plumbing contributed to the emergence of modern bathrooms and kitchens, and most dramatically the advent of the electric safety elevator allowed architects to design tall buildings; the advent of communication through common light sources could lead to a difference in the way houses and offices are designed.

Friday, March 25, 2011

Design a low-cost, high-performance LED driver

As Led production costs fall, they're being used more frequently in applications ranging from handheld devices, to automotive, to architectural Lighting. Their high reliability (operational lifetimes of greater than 50,000 hours), good efficiency (175 Lumens/W), and nearly instantaneous response make them a very attractive light source. However, driving LEDs is not without its challenges.

A controlled brightness requires driving the LED with a constant current, which must be maintained regardless of input voltage. Quite often, LEDs have a dimming requirement. For instance, it may be desirable to dim a display or architectural lights. There are two ways to accomplish this: either vary the LED current, or use pulse width modulation (PWM). The least effective way is varying the current because the light output isn't completely linear with current and the LED color spectrum tends to shift at currents below full rating.

It's important to remember that human perception of brightness is exponential, requiring a large percentage change in current for full dimming. This has a profound impact on the circuit design as a 3% regulation error at full current can become a 30% or more error at 10% load due to circuit tolerances. Dimming current waveform through PWM is more accurate, although the response speed becomes an issue. In lighting and displays, it's desirable to PWM above 100 Hz so the human eye doesn't perceive flicker.

Figure 1 shows a very simple, low-cost, buck regulator driving a single LED that implements a very fast dimming feature. This is based on a MC33063 which has an internal switch, a current-limit comparator, an oscillator, and an internal reference. A disable function is provided by the pin that's usually used for voltage regulation. In this scenario, a voltage greater than 1.25 V disables the supply while a lower voltage enables it. With the circuit enabled, the controller operates in a current limit/hysteretic mode, because voltage feedback has been eliminated.


1. This MC33063 forms the heart of a low-cost led driver.

The oscillator generates a start pulse that causes the power switch to be turned on. This puts the input voltage across the current sense resistor, LED, and inductor. The current-limit comparator senses when the current reaches about 350 mA and turns off the power switch. The inductor voltage reverses and flies above the input voltage, causing the freewheeling diode to conduct. The inductor and LED current continue to circulate until the switch turns on at the next switching cycle. This circuit is very adaptable for a wide range of applications. Using a switching regulator with a voltage rating of 40 V and a current rating of 1.5 A is useful in handheld portable devices, white goods, and automotive applications where simplicity and low cost are desirable. The basic topology could be adapted for a wider range of applications although it may be a challenge to implement the hysteretic control and enable functions so simply.




2. As shown, the hysteretic current control provides rapid PWM response. In the images, the green represents the output current, while the blue represents the PWM signal. The top image shows 500 us/div, while the bottom image shows 10 us/div.

The circuit of Figure 1 has been built and tested. Figure 2 shows the disable command and the resulting LED current waveform. The LED can easily be PWM dimmed at 500 Hz. Rise time and fall time of the current waveform is less than 100 μs. If higher ripple current could be tolerated in the LED, the inductor could be made a smaller value and the rise time and fall times could be improved. However, 500-Hz PWM is suitable for most applications.

Wednesday, March 23, 2011

Sharp new LED ceiling lights will hit Japanese market

Sharp’s new models of Led ceiling lights enable to come in an extremely thin design - measuring a mere 43mm at the thickest point, going all the way down to 8mm at the thinnest.


Out of the six models, three of them - the DL-C501V/C301V/C302V, will enable one to rely on a remote control to change the color of the white light courtesy of the Adjustable Color function, not to mention being able to adjust its brightness level as well.

In a nutshell, you get 110 different levels of color and brightness in order to suit a particular mood or time of day. Having a heart for the environment as well, LED lights will help lower energy consumption by up to 65%.

LED component assembly benefits from SMT processes

Recent growth in LED technology and solid-state Lighting has provided the electronics manufacturing industry with viable solutions for its addition into today’s electronic devices. LEDs have become an alternative light source to conventional incandescent and fluorescent bulbs. The electronics manufacturing industry sees the greatest benefits from the small size and lower power consumption of today’s LEDs.

There also is the recent trend to use “green technology” in consumer and commercial electronics. LED components offer high brightness and power efficiency, as well as lower carbon emissions than traditional lighting technologies. This aspect has made Led lighting popular with government organizations, which are now installing led lighting in public places and government offices worldwide.

When used for illumination purposes, LEDs are more cost-effective than traditional lighting sources. Thus, the global LED component market is witnessing an increasing demand. As a result, companies in the surface-mount technology (SMT) industry are expanding their manufacturing capabilities to meet this demand. High brightness LED components currently are experiencing high growth as the backlighting application in TVs is shifting from traditional CCFL technology to LEDs. The range of new and potential applications for LEDs in electronics is practically endless.




In order for electronics manufacturers to get these LEDs into their products, they must use one of two methods: hand assembly or automated assembly. Hand assembly is where skilled technicians carefully place individual LED components onto circuit boards using specialized tooling. This is a long, tedious process that can slow the production rates of electronic devices and tie up major labor resources.

On the other hand, automated assembly uses the company’s existing SMT equipment to quickly and efficiently place thousands of LED components every hour. Most SMT equipment is capable of placing multiple components on a circuit board at one time, increasing the overall production rates while decreasing labor costs. Obviously, the goal of a high-volume electronics manufacturing company would be to transition assembly into automated production.

Pick and place

The principle of using vacuum pressure and precision nozzles to enable component placement is repeated in every type of SMT equipment. There are five distinct stages of the pick-and-place process:

Picking: components are withdrawn from a feeder or tray by a vacuum nozzle

Holding: components are steadied for rapid movement while the machine detects proper alignment

Transport: components are transferred from the picking location to the PCB for assembly

Placement: components are lowered to their specific location on the circuit board

Release: components are released by the nozzle, which returns to the picking area to restart the process

No SMT equipment can place components accurately or run efficiently without quality nozzles and feeders, which are at the core of the pick-and-place process. If the machine is either unable to pick parts consistently or hold on to the components during the transport from feeder to PCB, defects will result. An increase in defects means a decrease in production, costing the company more money over a short period of time. Proper feeder and nozzle selection is critical, especially with the current market growth and technological advancements in SMT equipment.

Nozzles are the first and last thing to touch all components placed, and they move tens of thousands of these parts every hour. With components sizes reaching microscopic proportions, nozzle manufacturers must strive to maintain precision tolerances and exact dimensions in their designs. These nozzles are required to hold the part during transport to the board while the machine is moving and/or rotating at high speeds. providers must use this technology to get LED components into their customer’s products.




EMS providers

Debron Industrial Electronics, Inc. is a leading electronics manufacturing service (EMS) provider specializing in high-technology electronic assemblies, printed circuit board assemblies, electronic wiring, cable assemblies and box build. Mark Hoch, SMTA Certified Process Engineer for Debron, said “We are a contract manufacturer that caters to several customers specializing in cutting-edge LED technologies. They rely on our expertise to develop, document, implement and sustain their manufacturing processes.” When one of its customers needed a product that required the placement of LED components in its design, Debron decided to move forward with the automated assembly process.

Since making the transition, Debron has helped several of its customers to fully automate the production of products that previously had been assembled by hand. The company was able to do this by creating custom pick-and-place trays for LEDs that were available only in bulk for hand assembly. Debron also has been working with tooling companies such as Count On Tools, Inc. to develop custom pick-and-place nozzles that enable LEDs to be picked, vision centered and placed with high-speed, automated SMT assembly equipment. Streamlining the automated placement process has allowed Debron to free needed manpower to use in other areas of the assembly process.

As with any new project, there are some challenges associated with the placement of LED components in the SMT production environment. It is the goal of the EMS provider to overcome each of these obstacles to cut production costs and provide quality product to its customers and their end users. Some of the major challenges that EMS companies face when trying to place LED components in SMT production include:

1. Component handling in the feeder

During the picking process, LED components are withdrawn from the feeder by a vacuum nozzle. SMT technicians must ensure that the LED components are correctly positioned in the feeder pocket to guarantee that pick-up is achieved and that the LED is properly handled during the transport stages. “Slop in the pocket” may require nozzle centering during the picking process while excessively fast advancements of the feeder may skew the part in the pocket, preventing component pick-up.

2. Component handling on the nozzle and proper nozzle selection

Some LEDs, such as those from Cree, require special handling operations to prevent damage to the optical lens. They must avoid placing mechanical stress on the LED lens by not touching the optical surface during the component picking or placement processes. This eliminates the possibility of degraded performance from the LED after the circuit board is assembled. Proper nozzle selection also is important for the transport and placement processes. Not only does the SMT nozzle have to pick the component, it also must move it to the board and accurately place it. Most LED suppliers work directly with nozzle and tooling manufacturers, like Count On Tools, to develop nozzle designs that meet their individual process requirements.

3. LED sensitivity

The fragile optical surface is not the only issue with the use of LEDs in SMT production. Early LED designs were very temperature-sensitive, forcing assembly using unconventional methods, such as hand assembly. LEDs often were bonded to heat dissipative substrates using conductive epoxies or low-temperature solders. This required special assembly processes that lengthened the manufacturing process, increasing product build costs.




4. Scaling up to high-volume production

As LEDs become more robust, assembly via means of more conventional assembly processes such as automated SMT equipment allows EMS companies like Debron to focus on other challenges such as repeatable part picking and vision centering, as well as effectively increasing throughput and minimizing defects. Repeatable performance is the major challenge with scaling up to high-volume production. EMS providers must strive to maintain a high level of performance to keep their production on track to meet customer demands. This requires fine tuning the assembly process.

As with any problems in a production environment, there is always a solution. By capitalizing on its current knowledge of SMT production and partnerships with quality suppliers, Debron was able to overcome most of the challenges associated with this process. Debron developed custom trays for the LED components to allow for more accurate picking and transport processes while eliminating issues with component handling in the feeder. It also worked with its equipment manufacturers and custom-tooling manufacturers such as Count On Tools, Inc. to develop custom SMT pick-and-place nozzles that increase LED/nozzle compatibility, allowing for greater placement accuracy and increased throughput.

Due to the partnership with Count On Tools, Inc., Debron was able to fine tune its automated assembly process and scale up to high-volume production of LEDs. Using the custom nozzle that it purchased from Count On Tools, Inc., Debron was able to reduce LED fallout to 2.3 percent. Defect rates dropped significantly and first pass yields increased steadily up to 99.4 percent.


In conclusion, the latest LED technology opens up wide areas for new applications, new technical possibilities and reduced costs in both the SMT and electronics manufacturing industries. Today, many companies are crossing traditional business boundaries and streaming into the LED lighting market. This, in turn, has created a large demand for LED use in general markets and not the traditional niche applications. By partnering with component manufacturers and nozzle/tooling suppliers, EMS companies like Debron can guarantee success by lighting the way for customers seeking LEDs in their SMT production.

Philips Lumec Introduces New LED-based Roadway Light

Philips Lumec Wednesday unvei Led its newest product, the RoadStar?, a state-of-the-art LED luminaire designed specifically for large area, street, and roadway Lighting applications. The RoadStar? has the potential to reduce by 50% the amount of electricity a city/state/country uses for street and roadway lighting.


Philips Lumec has successfully designed and implemented solid state lighting solutions for projects in North America. The new RoadStarTM luminaire uses LUXEON? Rebel power LEDs, saving approximately 50% on energy consumption compared with traditional HID CobraHeads.

The RoadStar? LED luminaire brings to the table major social benefits, and in its industry, it’s the first of its kind. Besides its myriad benefits, it has the ability to replace existing energy hungry HID (High Intensity Discharge) CobraHead lighting fixtures without the need to change a city’s lighting infrastructure. Installers simply swap one for the other and instantly reap the benefits of this sustainable technology.


Philips Lumec’s patented LED technology provides over 70,000 hours of operational life and the RoadStar? also contributes to the environmental cause by considerably reducing the need to constantly replace burnt out lamps. This reduces the need to deploy maintenance trucks and personnel by up to 7 times, saving any city money, and lowering their carbon emissions at the same time.

The RoadStar will be launched simultaneously on September 13th 2009; in the U.S, at the APWA's 2009 International Public Works Congress and Exposition in Columbus, OH, and in Canada at the AIMQ (Association des Ingénieurs Municipaux du Québec/Municipal Engineers Association of Quebec) in Trois-Rivières.

Best LED Grow Lights Improves Indoor Gardening

Best LED Grow Lights Improves Indoor Gardening

Indoor Gardening

Most people live in areas of the world that are either not warm enough, or do not receive enough sunlight on a daily basis to grow crops year-round outdoors. Over time home-sites have also become smaller and smaller, reducing the area most homeowners have for an outdoor garden. As a result most people are forced to purchase hormone-grown, pesticide-loaded fruits and vegetables from the grocery store, that taste less and less like fruit each year. The only option most people have to sustain their families year-round with organically-grown, vitamin-rich food, is by starting their own indoor garden. That is where LED Grow Lights are the perfect solution, as plants require a light source other than the sun if they are to grow indoors.



Best LED Grow Lights

LED Grow Lights are the latest form of indoor plant lights, offering their users a green and energy-efficient alternative to HID (High Intensity Discharge) lighting. Just as our bodies require specific nutrients to stay strong and healthy, plants require specific ratios and colors of light in order to properly photosynthesize. Unlike HID lights which emit a full-spectrum white light (much of which is unused by plants), LED's emit narrow wavelengths of light that can be combined to simulate the specific ratios and spectra that plants use most efficiently for photosynthesis. By arranging LED's of the proper wavelengths and ratios, LED Grow Lights are able to deliver up to 100% usable light for plant growth! LED Growlights also operate hundreds of degrees cooler than HID bulbs, making them a much better alternative for indoor gardens. With the use of LED Grow Lights one can reduce their power bill by up to 70%, while virtually eliminating the need for ventilation and A/C. LED GrowLights also eliminate mercury-filled HID bulb replacements, and contain no harmful or un-recyclable materials.


Tuesday, March 22, 2011

Knowledge of Indoor Garden LED Grow Lights

Some people don't know any knowledge of led grow lights, they still use HID grow lights, and some people know a little about led grow lights, but they don't know led grow lights can instead of HID grow lights, I want to help you know all knowledge of led grow lights in this article.


1.90W UFO Grow Lights can instead of 300W to 450W HID Grow Lights, they will do same work, it will help you to save 80% electric energy.

2.The wavelength of LED is very important, general red light wave uses 620 - 630 um, blue light wave uses 450-460um and 460-470um. Red light can promote plants to sprout and bloom, blue light can promote plants to grow.

3.Led grow lights can only be used indoors, its time of shining is 10-14 hours.

4.There are two kinds of 90W LED grow lights, one is square, one is round, the round one is named " ufo led grow lights " , Usually the weight of ufo grow lights is lighter, But the square led grow lights illumination is stronger. Even so, I advise you to choose 90w ufo led grow lights

5.Light decline is very small, the lifetime is over 50,000 hours.

6.The brilliant rays that led grow lights distributes can be totally absorbed by the plant, though HID can do the same work, but the efficiency of led grow lights is stronger

When you use led grow lights, you need to pay attention to:

1. use led grow lights indoor.

2.After opening the power, don't touch the surface of the light.

3.Don't put it in the place with water.

4.Don't let water soak led grow lights.

5. the temperature of led grow lights have better below 65 centigrade.

6.When raining, you had better close the power, this is a very good lightning measure.

7.Time don't be over 12 hours to shine, it is the best shining for time, if over 12 hours in 10-12 hour, will not benefit the growth of the plant, is unfavorable to led grow lights too.

8. The distance between led grow lights and plant is 2.5 meters - 3 meters, the minimum height of 90 Watt led grow lights is 1.5 meters, the minimum height of 300 led grow lights is 2 meters, 600W is 3-4 meters.

9. The distance between two 90Watt led grow lights is 3 meters, 120W: 4-5 meters, 600W: 8 meters.

Monday, March 21, 2011

LED Grow lights-saving light plants made significant progress in key technologies

By the Institute of Agricultural Environment and Sustainable Development Research Fellow Yang presided over the completion of its long "plant LED grow lights Production of energy efficient light sources and application of key technologies "project, recently organized by the Ministry of Agriculture experts. To Fang Zhiyuan, director of the Academy for the results of the project evaluation committee gave a high evaluation, that the results are LED(Light-emitting diode) light source in the field of application of plant major technological breakthrough for modern agriculture, plant tissue culture, plant the fields of energy efficient plant production provides an important technical support, on the whole reached the international advanced level.


Energy saving at home and abroad the urgent technology needs, the research group after 8 years of exploration, the LED gow lights system in plant tissue culture, seedlings, leafy vegetables and medicinal plants, vegetables, quality control, such as greenhouse production systems fill light application mechanism, proven to improve energy use efficiency of plant light environment index system optimized for LED applications in the field of plants and development of energy-saving lighting system provides an important theoretical basis; for plant tissue culture, artificial light propagation and planting, greenhouse Fill the different uses of the specific needs of the light source, developed a blue LED as the main red spectral composition, light environment smart adjustable, easy to install LED soft lights, lamp, lamp board, and other series of LED light source system; in the international arena will be the first LED light source for plant breeding factories, homes, factories, and other areas of plant and expand the scope of application of the LED light source; for the first time developed a LED light source with a tissue culture container, completely solve the traditional tissue culture container and its cap shading problem, significantly enhanced the photosynthetic efficiency of plant tissue culture, energy savings of 80% or more.


8 years, the research group has applied for 25 patents related, including patents 6, authorized patents 11; have to "plant LED grow light and key supporting technology" extended to Beijing, Shanghai, Tianjin, Jilin, Shandong, Guangdong , Liaoning, Shaanxi, more than 30 provinces (cities, districts) and the military base, promote the use of total area of ​​20 square meters. 2010, "LED family of plant factories" on display in Shanghai World Expo will be successful, by domestic and international attention.


Energy efficient LED grow light source of plant production breakthroughs in key technologies for agricultural applications of LED among the ranks of great powers to provide effective technical support, but also for the future in the Gobi, desert, islands and reefs, polar, skyscrapers and other non-arable land and the efficient production of food self-sufficiency in space provided important technical support, application prospect is very broad.

Advantage West - Solar LED Lighting

Countries in the world energy supply security concerns and actions to address climate change, promoting renewable energy worldwide, the rapid development of technology and industry, such as solar power, wind power and other annual growth rate in more than 20%. Renewable energy has become to diversify energy sources, global climate change and achieving sustainable development an important alternative energy sources. Especially in the last two years, with fluctuations in international oil prices and the "Kyoto Protocol" into effect, renewable energy development as an international hot energy sector, has been widespread concern in many countries. The end of 2006, global installed capacity of renewable energy exceeded 200 million kilowatts, of which some small hydropower 80 million kilowatts, 75,000 kilowatts of wind power, geothermal power 10 million kilowatts, solar power more than 700 million kilowatts, solar PV annual growth rate of more than 60%, the production capacity of close to 200 million kilowatts.



Energy-saving advantages of led solar lighting

With economic development, China will greatly increase the lighting power, green energy-efficient lighting research and application, will be more and more attention. Solar LED lighting products as a cold light source, with higher cost, green, safe, reliable, stable quality, long life, easy installation and maintenance features, can be widely used in green lighting, road lighting, advertising light box lighting, urban landscape modeling lighting and home lighting systems, solar LED lighting, but a higher one-time investment of their development bottleneck.

Currently, lighting consumes about 20% of the entire power consumption is about to reduce electricity for lighting is an important way to save energy. To achieve this goal, the industry has a variety of research and development of energy efficient lighting equipment, and have achieved some results. However, from the "green light" requirement is also far, the development and application of more efficient, reliable, safe and durable new light source is imperative.

The end of 2006, the amount of renewable energy in China totaled 200 million tons of standard coal (not including the traditional use of biomass energy), accounting for 0.5 percentage points for renewable energy sources by 2010 account for 10% of total primary energy consumption The goal has taken a solid step forward. At present, China is in the following areas to promote the development of photovoltaic power generation in the domestic market: First, start sending electricity to the village projects; Second, the use of photovoltaic power generation on special projects, such as the World Expo, the Olympics; Third, in the desert building photovoltaic power plants; Fourth, some cities started to mobilize the roof plan; five, and study to improve the competitiveness of PV electricity price policy (90% of photovoltaic products, exports and the lack of domestic market, may limit China's PV industry long-term development. Once there is a change of foreign policy or the photovoltaic industry to protect their own industries to take measures to restrict imports, China has launched a large number of PV projects will face difficulties.)

Solar lighting technology innovation

LED low power consumption, extraordinary life has been widely applied to the signal indicator, digital display and other weak areas. However, conventional LED light source as the opening angle is small, point size, high brightness, light scattering is highly directional, easy to form a spot light, light uniformity is not good and other factors, hindered its application in the lighting field.

On the traditional structure of solar lighting, intelligent controller, the angle of the reflector lamp update and technical improvements, the best tilt angle design, the flat head and round complement each other, making it more uniform light, the overall brightness higher, the cost low, more conducive to promote the application.

The column and flat head LED light torch-style combination of structure, through the reasonable control of the flat installation of high brightness white LED tilt light emitted by the LED combination of the uniformity of illumination and the illumination be greatly improved. The technology will not only help to enhance light efficiency, and combined light energy is only 4W or so, the brightness of light emitted by up to 20W 40W incandescent lamp or energy saving light, can be more effective use of solar energy. 12W solar cells only need the capacity, 12V/24Ah the battery to be able to ensure that such LED light source in 5 continuous rainy days to work effectively, and that the useful life of 100,000 hours or more, for more than 10 times the energy-saving lamps.

Specifically developed for the combination of street area light source - cross-shaped and rectangular light source combination, give full play to the opening angle of flat head LED light size distribution and large round area of ​​high brightness LED point advantage, so that the two complement each other to maximize the light effect, to overcome the flat LED light point area than round LED, LED lighting uniformity and round flat head LED as the shortcomings.

In the controller, the use of solar photovoltaic technology, to maximize energy collection, the power reserve is completed, the battery light source to provide 12V DC power supply, so that the light source produces 6500K white light. Also, by streamlining the intelligent controller structure, making the structure more simple, the failure rate lower, in order to further reduce the cost to do the technical preparation. Moreover, by detecting the solar cell output and battery power to determine system status, to achieve automatic control of the whole system and intelligent management.

Promote the use of solar lighting

Solar energy as an emerging green energy, with its unparalleled advantages in rapid application. As a fourth generation light source in city beautification lighting, road lighting, garden lighting, indoor lighting and other lighting in all areas and applications has been effectively utilized. Especially in remote areas without electricity, solar lighting a more extensive application prospects.

Most people believe that energy-saving lamps can save energy 4 / 5 is a great initiative, but also energy saving lamp LED than 1 / 4, which is the great innovation of solid light. In addition, LED light, also has high quality, essentially no radiation, reliable and durable, very low maintenance costs and other advantages, typical of the green lighting.

The successful development of ultra bright LED, greatly reducing the cost of solar lighting to use, so that at or near the early-frequency AC lighting system installed cost quotations, and protect the environment, ease of installation, operation security, economic and energy saving. Because LED light with high efficiency, low heat advantage, have been increasingly used in the lighting field, and showed a trend to replace traditional lighting.

In western China, non-trunk solar lights, solar garden lights become the size. With the vigorous development of solar lamps, the "green light" will become a trend.

Market size of LED lighting industry in Guangdong to the hundreds of billions of target breakthrough

Guangdong Province is expected in 2015 LED lighting industry market size will exceed eighty billion, the Pearl River Delta region will become the LED lighting industry gathering area. Liaoyuanzhishi LED lighting industry to dominate the whole of Guangdong.


Pearl River Delta region will play a new LED lighting industry belt, start from the current package, the application of downstream industrial chain links, to the upper reaches of the substrate, wafer, chip and other high-end technology products penetration, LED packaging production accounts for about country Qi Cheng.

Statistics show that Guangdong LED lighting industry has taken shape as a leader in Shenzhen City, Guangzhou and Shenzhen as the spindle, the spindle on both sides to extend the industrial chain, Dongguan, Zhongshan, Foshan, Jiangmen, Huizhou emerge. Dongguan towns (street) are gradually promoting energy-saving LED lights.

Currently, production of LED lighting companies in Guangdong Province has two thousand six hundred last year, LED lighting and related industries, the province's total output value of thirty-one billion yuan, LED lighting industry in Guangdong has achieved good results, the public is also more concerned about the LED market in Guangdong dynamics.

Saturday, March 19, 2011

LED Grow Lights Increase Productivity

LED Grow Lights are comprised of multiple low-wattage diodes (normally 1W-5W) that work together to create the complex spectral varieties that marijuana requires to grow properly. LED Grow Lights work almost like a puzzle, with each LED wavelength playing a specific role in determining how the plant will grow and produce. By fine-tuning the wavelengths and ratios of a LED Grow Light properly, up to 100% of the light being produced can be efficiently absorbed marijuana plants. This gives LED Grow Lights a huge efficiency advantage over HID Grow Lights, allowing the end user to consume far less energy to achieve similar or better results.


LED Grow Lights provide many additional benefits that HID lights do not. LED Grow lights contain no mercury or harmful elements, and as such can be fully-recycled. HID bulbs on the other hand, must be changed at least once per year at a cost of $100-$200! LED Grow Lights also consume about 60-70% less energy, putting money back into your pocket with each power bill. LED Grow Lights also operate up to 600 degrees colder than HID Grow Lights, virtually eliminating the need for ventilation and A/C equipment.

LED Grow Lights from Grow Stealth LED take this science one step further, focusing on the quantum efficiency of marijuana. Quantum efficiency determines the number of photons required for the formation of one oxygen molecule in photosynthesis (a byproduct of CO2, Water, and Light). Research published by NASA verifies that when all 3 regions of PAR are balanced properly (400-500nm, 500-600nm, & 600-700nm), flowering times and yields can be dramatically altered. In one test featuring tomatoes, scientists reduced the entire growth cycle from 130 days to 100 days, with a subsequent increase in yields of 30%! Grow Stealth LED is the only company on the market focusing on this occurrence and applying it to their LED Grow Lights. Quantum LED Grow Lights can speed up marijuana flowering times, while also increasing yields. Their Pro-Bloom option adds an additional wavelength that also increases resin and THC production in marijuana plants!

LED grow light--Indoor cultivation of medical marijuana

There have been many reports of people being investigated and busted for marijuana cultivation because their homes were monitored with an Infrared Heat Sensing Device.
It works like this; If the authorities suspect someone is cultivating marijuana, they set up surveillance of the home or building and use an Infrared camera to measure the amount of heat radiating off the structure. They then compare the targeted structure to surrounding buildings or homes to gauge what they think should be the normal amount of heat emitted from a particular structure.


In some parts of Europe, the authorities don't even wait for a lead from an informant to give them the heads up, on a possible marijuana grow operation. They simply take to the air and use their high-tech surveillance camera and scan the roofs and walls of homes in residential areas and buildings. If a home is identified as a possible marijuana grow operation because of the heat radiating off the structure, that home or building becomes the target of further investigation and possibly a raid.

Using HID lamp will emit too much heat that could be inspected by infrared camera. Now, LED grow light could deal with very well because it is cool light source which make authorities can not find what you do inside. So more and more growers are replacing of their HID lamp by LED grow light. For more information about LED grow light, please visit, we will provide you with the most professional and the best lighting solution.

Wednesday, March 16, 2011

LED grow Light Intensity

In midsummer, near noon on a clear day, full sunlight approaches light intensity of 1000 Wm-2. Since about 45% of sunlight is in the 400nm to 700 nm range used for photosynthesis, plants can only use about 450 Wm-2 or about 2000 micromol m-2 s-1. Similar or higher intensities can be achieved using artificial light sources like HPS,MH, LED grow light, but this requires considerable costs for both power and lamps.

If we consider a plant, for individual leaves oriented at right angles to incoming radiation, it needs roughly 1/3 of full sunlight (about 150 Wm-2) for photosynthesis. These values would be typical for sun-adapted species such as greenhouse vegetable crops. In shade-adapted species, including many foliage plants need lower intensities of receiving LED grow light. This might lead to a misconception that maximum crop growth can be achieved at only 1/3 full sunlight. For many several reasons, however this is not the case. These are:

• Whole plants are not composed of single leaves exposed to direct sunlight coming in at right angles to their surfaces. In a real canopy, leaves are often positioned oblique to the incoming beam lowering the amount of available light.

• In a shoot canopy the leaves overlap, and the incoming light is absorbed before it reaches the lower leaves. (PS. LED grow light emit enough intensity for overlap leaves)

• Differences in light absorbing pigment contents in different tissues cause variation in absorbing light.

For these reasons, well developed leaf canopies require higher intensities to reach the light compensation point than do single leaves. These considerations help us to understand a relationship accepted by many greenhouse vegetable producers, the "1% Rule": for every 1% increase in light intensity reaching the crop there is a 1% increase in productivity.

LED grow light safety instruction

Regardless of the application that indoor led grow lights will be used for illumination, safety should always be a priority. Failure to follow led manufacture's safety instructions could cause a hazardous situation such as electrical fires, product failure and bodily harm.

1. Extension cords - can be very helpful in many different scenarios, however, if used incorrectly, they can cause fires. Extension cords should only be used on a temporary basis. Check the extension's amperage rating which is usually represented as "A" or "amps." Make sure the appliance connected to the extension cord do not exceed the amperage rating.

Power tools and high voltage appliances should be plugged into heavy-duty, grounded, three-wire extensions. Discard extensions that are frayed, cracked insulation or have damaged plugs. When removing an extension cord from an electrical outlet, hold firmly on the plug (the part that touched the outlet) and pull - do not remove by tugging the cord.

2. Led grow lights Safety

Regardless of the application environment (home, office, warehouse, et) safety precautions must be taken. Familiarize yourself with safety, installation and maintenance of led grow lighting. Improper installation and maintenance can lead to fires, deaths or personal injuries.

Follow the manufacturer instructions for lamp cycling. Timers are available that will automatically cycle lamps, either on a scheduled or random basis depending upon what is best for a user's needs.

Contact the LED grow light manufacture's for recommendations on specific  applications. Do not use luminaries in an application where the ambient temperature exceeds the luminaries rated temperature.

Tuesday, March 15, 2011

LED Grow Light in Greenhouses and Indoor Gardens

Technically, led grow light refers to an electromagnetic radiation with a wavelength that is visible to the eye (otherwise, it is "dark"). Light is a complex factor, ultimately influencing all aspects of plant performance. It is the primary resource for photosynthesis.


When considering plant responses to light, plant growth is influenced by three different properties: intensity, duration and quality of the LED grow light.

Greenhouses or indoor gardening systems are designed to provide non-stressful environmental conditions, optimal temperature, sufficient water supply, nutrients and carbon dioxide. Under such conditions, light often becomes the main limitation to crop growth. In the next, you will find the importance of LED grow light and issues pertaining to the use of supplemental lighting in greenhouses or indoor gardening systems.

In the context of plants, intensity of light refers to the amount of light received per unit area and is usually expressed either in terms of radiant energy flux (Wm-2, or Jm-2s-1) or quantum flux (micromol m-2s-1). Duration refers to the length of the light period. This is important for determining the total amount of light received. On this basis, plants can be categorized to short-day plants, long-day plants and day neutral plants. Quality of LED grow light refers to the type of radiation received by the plant and is usually expressed in wavelength.

Wayet Lighting is the very professional manufacturer of the high power led lights, Our company has 1,500sqm factory area, over 100 employee and 10 engineer for R&D team, more than 20000 units lights output monthly, 3 years LED industry experience make us can provide you the very professional solutions for the LED lights and LED display. Equipped with advanced production equipments and production lines to guarantee the delivery time. OEM &ODM are avaliable.

What You Need to Know About the UFO LED Grow Light

People who enjoy indoor gardening are looking for good, bright light for their plants. In addition, they want light fixtures that are light in weight, yet offer excellent light coverage. All of these great features are available in the UFO LED. Although it looks small and round, rather like an unidentified flying object, this grow light provides amazing light at a cost-effective price.

Roughly the same size as a bread plate, the UFO LED light runs on only eighty watts of electricity yet puts out more bright light than a four-hundred watt high pressure sodium or metal halide lamp. HID, or high intensity discharge, lights, on the other hand, require seventy to eighty percent more electricity to run them at the same light capacity as the UFO LED.

Not only does it use a fraction of the energy that other grow lamps use, but it also runs very cool. This is because the UFO LED comes with three fans built in, so you will not need to purchase air-cooled ducting or reflectors and will dramatically reduce your air conditioning costs as well. A cooler running UFO LED light also ensures that you will not burn your tender plant foliage, a common problem with other types of grow lights.

Your plants will flourish under these small but very powerful lights. Several one-watt LEDs focused toward your plants, provide your indoor garden with eight times the light output that you would normally receive with an HPS or MH grow light. The bulbs used in the UFO LED grow light are in color temperatures and tones that your plants can actually use for photosynthesis. The light specrtrums output is suitable for all phases of plant growth

With all of this remarkable lighting capacity, it is also encouraging to learn that the UFO LED light will last for eighty thousand and more hours, or the equivalent of seven to ten years of exceptional performance. The coverage area of this light is three feet by three feet, allowing you to grow a wide array of plants in that large growing space.

Lightweight and very easy to use without any extra wiring or complicated setup, this can be used in the normal light sockets found in your home or greenhouse. So for high performance for low cost, the UFO LED grow light is a perfect choice and truly is the indoor gardener's best friend.

Monday, March 14, 2011

The Supernova LED Grow Light Provides Benefits to Indoor Growers


Indoor gardeners are agog with the introduction of the latest LED grow light to hit the market--the Supernova LED. This family of LED grow lights offers improved light output for a fraction of the cost of using HID or other ordinary types of grow lights. Gardeners are impressed with its light coverage, increased light spectrum control, and cool running temperatures, among a wealth of improvements it brings to ordinary grow lamps.

The Supernova LED grow light offers an increased light coverage when compared with other LED grow lights. While other good LED grow lights offer a three foot by three foot area with good light coverage, the Supernova LED adds an additional two feet to that, for a total of five square feet of coverage area. All this light comes from a lighting unit that is space saving yet very powerful. The Supernova LED grow light achieves this large coverage through the clever use of seven individual circuit boards. This allows the light to flow out of the unit at different angles, and this unique design provides for its improved light coverage that your plants will appreciate.

When you purchase an ordinary grow lamp, it comes with a particular color temperature and color tone built in. This is also the case with the Supernova LED grow light, but with the major benefit of allowing you the flexibility to change the color spectrum as you wish. This is accomplished through independently adjustable spectrum control. In addition to this flexibility, the Supernova LED also comes in an enhanced spectrum version, providing you with six more custom LED light spectrums at your fingertips. While young plants require the blue light spectrum for growth, mature plants need red and orange light in order to produce fruits and flowers, so if you can adjust your light to meet their specific needs, they will experience much better growth rates. The unique Supernova LED grow light allows you to fine tune your light to exactly what your plants require, unlike any other grow light available.

Ordinary grow lights have a side effect, after being on for a length of time, of increasing heat temperature, so much so that extra equipment must be brought in in order that the lighting equipment does not overheat and malfunction. LED grow lights such as the Supernova LED avoid this issue because they have fans built into the units. This keeps the Supernova LED lights cool, and avoids entirely the need for ducting and air-cooled reflectors, which offers a tremendous cost savings to you, the indoor gardener.

A Supernova LED grow light is a new innovation in indoor gardening lighting that will offer superb lighting for your plants while saving you money.

Growing Penetration of LED Lights in the Market

Growing demands for consumption of electricity in commercial buildings, especially in advanced economies like United States has prompted led bulb manufacturers to come up with led bulbs. They are good for energy saving and highly durable. The LED lights benefit the consumer in energy saving as well as lets them have a higher life span of the bulb used.


Scientists all over the world predict that led bulb will be occupying 46% of the commercial building lamp market by 2020. It is no mean achievement considering their appearance in the market is of comparatively recent origin.

Around 17% of the global electricity consumption hovers round lighting. In advanced economies, the light consumption relates mostly to the commercial buildings. Such requirements have prompted the led bulb manufacturers to use light emitting diodes as technology as well as the development of solid state lighting patterns.

Not only the led bulbs are highly energy saving but are also extremely durable in nature. Thus there is a two way advantage for the end users. In fact some of the companies have recently come up with bulbs that have an amazing life span of 17 years. Benefits of these bulbs for the commercial sector where the consumption of electricity is a bare necessity are immense.

A recent survey report by Pike Research indicates that LED lights are going to assume great importance in the market in near future. It is also assessed that in the $4.4 billion U.S market for lamps that includes industrial, commercial as well as outdoor sanitary sectors in the industry; led bulb manufacturers will be having lion's share of around 46% by 2020.

Since the solid state lightings cost less in comparison while delivering an improved performance, LED lights are likely to turn to be a practical option for most of the commercial organizations in the world. They are already widely used for running the traffic lighting systems as well as the exit sign lightings. It is estimated by experts that the usage will soon extend to the retail and office buildings; both professional as well as institutional. All these facts indicate that led light manufacturers are going to be the torch bearer for the lighting industry in future.

Reason for such expectations among the experts in the field is that as each field would be saturated one after another, led bulbs will enter into yet another field that remains hitherto unexplored. Since they are not only less expensive but durable, they can serve multiple purposes very efficiently. In fact, they make ideal lighting system for all the public requirements including street lighting, commercial hoardings, sign boards as well as the lighting of commercial complexes.

It does not mean that there is no downside of the led lighting system or the led light manufacturers do not have to face any problems. On the contrary, they have to address multiple technological as well as economic hurdles to come through with flying colors. Of course the technology and cost efficacy of the solid state lighting is rapidly improving. That is why it will be still sometime before the led lights take the lead in the lighting industry.

Yet the future is bright and quite predictable. Just as the fluorescent T8 and T5 lamps overtook the incandescent lamps; led bulbs are likely to overtake all others in the fray.

Wednesday, March 9, 2011

LED lighting market in the essential development of the "three phase"

LED lighting market in the essential development of the "three phase"

[Abstract] With the gradual development of LED lighting, auxiliary lighting in the lighting project and other public places, LED gradually replace some of the traditional light source products. 2009, LED lighting began to enter the main popularity in developed countries. The higher the tariffs, the use of longer places of business applications, LED lamps quickly became the new darling of the market. As the use of LED lighting, LED market development in several stages.
With LED Lighting  The progressive development of the auxiliary lighting lighting projects and other public places, LED lighting gradually replace some of the traditional light source products. With the gradual development of LED lighting, auxiliary lighting in the lighting project and other public places, LED lighting gradually replace some of the traditional lighting products. 2009, LED lamps into the main lighting in the developed countries began to spread. The market for LED lighting products have a certain amount of recognition and acceptance. Green LED lamps, small size, high reliability and other features gradually becoming prominent.

With the gradual development of LED lighting, auxiliary lighting in the lighting project and other public places, LED gradually replace some of the traditional light source products. 2009, LED lighting began to enter the main popularity in developed countries. The higher the tariffs, the use of longer places of business applications, LED lamps quickly became the new darling of the market. As the use of LED lighting, LED market development in several stages.
The first stage, LED lamps utility model stage.
In the last phase, based on the market for LED lighting products have a certain amount of recognition and acceptance. Green LED lamps, small size, high reliability and other features gradually becoming prominent. Thus completely different from the traditional development of a series of products will become predominant light sources. Lighting industry, there will be a more open space for development. Illumination light source is no longer only have a role in changing it makes people work more closely the life bit by bit. The fight is to design application vendors advantage.
The second stage, LED lighting intelligent control stage.
Things such as the development of new technologies, LED as the semiconductor industry, high-speed trains will also catch this tour, to play its high controllability characteristics. From home to office, from roads to the tunnel, from cars to walking, from the auxiliary lighting to the main lighting, with intelligent control of the LED lighting system will lead to higher levels of human services. LED lighting products industry will also be made to the design of products, to provide total solution process.
The third stage, LED lamps instead accept the stage.
This stage is early in the development of LED lighting, mainly reflects its high luminous efficiency (energy consumption), and long life. Because the price was high, so at this stage mainly for business according to the market. A process of customer acceptance, the first is to use the habits and appearance of the transition and acceptance. Consistent with the use of traditional light sources under, LED lighting reflects the energy-saving, long life and other features make it relatively easy to accept the market at high prices. Especially in commercial applications. Is the quality of the vendor to fight price advantage.

Shanghai World Expo will help people of LED lighting into the home three to five years

LED lighting technology by night this reporter Chen Huanhuan Expo Axis / Photography

Zhangjiang, Shanghai high-tech enterprises to gather. Shanghai Semiconductor Lighting Engineering Research Center here and inconspicuous.

But when the "Science Times" reporter in-depth interview after the discovery, popularization of LED lighting in China may be the hope of a breakthrough from here.

Changes to the platform from the stage

Compared to the hustle and bustle during the day, the Expo is even more evident at night near a distance to see the beauty of tilapia, in addition to "a four-axis Hall" and the Urban Best Practice Area, the park plaza lighting, along the landscape, identity and smart guidance systems are used semiconductor lighting technology. According to preliminary estimates, the entire park LED chips more than the amount of 10 billion, more than 80% of the park's night lighting with LED technology. Can be said that the Expo site has become the world's largest LED demonstration area.

Is a new solid-state LED light source, a small size, low power consumption, long life, fast response, high reliability, has been recognized as a world, the importance of energy saving lighting, materials, and to expand up to speed fast kinds of applications. Currently, the semiconductor lighting has become a national competition in the field of energy-saving technology focus. Internationally, the high-end LED technology continues to progress, with each passing day.

Recently, the "Science Times" reporter learned during an interview in Shanghai, with the opportunity for the World Expo, Shanghai's semiconductor lighting Industry Has been a spurt of development, a group of national business development and growth momentum.

China in 2003 Science and Technology Relevant ministries and local governments jointly set up National Semiconductor Lighting Project Coordination Leading Group, officially launched the National Semiconductor Lighting Project, Ministry of Science and Shanghai became the first approved four national semiconductor lighting industrial bases.

Chinese Academy of Sciences Technical Physics researcher Wei Lu believes that Shanghai World Expo, once again promoting the Shanghai LED industry chain development, and in the post-World Expo era, Shanghai should start LED stage show developed into a true development platform for Shanghai semiconductor lighting industrial technology level to improve and promote Shanghai semiconductor lighting industrial scale development.

Shanghai Engineering Research Center for Semiconductor Lighting Guo Yansheng, director believes that the support of national policy in Shanghai is leading the LED industry, the progress of the country. He said that China is a manufacturing country, semiconductor lighting industry has an unparalleled advantage in the downstream. After years of investment in Shanghai, in the upper, middle and lower reaches have cultivated a group of self-agglomeration Intellectual Property Enterprises, especially in the last 3 years, the Expo focused on a number of technology projects, the next goal is to white LED lighting into millions of households.

Incubator to promote the market

Shanghai Semiconductor Lighting Engineering Research Center in early 2005 by the Shanghai co-sponsored by 17 units set up base there are currently more than 300 enterprises, including Benjamin, think twice, blue, Sapphire is one of the best and other enterprises.

Through 5 years of efforts, the Shanghai semiconductor lighting of public R & D and services platform even better. On this platform, 7 sub-centers and five specialized laboratories dedicated LED products to establish technology, quality and safety standards (specifications) system for product selection of LED products used to provide the scientific side, convenient and uniform standards. Standards have been developed, including electronic detection LED light color standards, LED substrate material standards, LED chip test method standards, LED instantaneous flux test method standards, LED construction and acceptance of standards. Among them, the construction and acceptance criteria have been formally listed in Shanghai local standard, starting May 1 this year, the formal implementation.

This year's guide to science and technology research in 2010 also clearly stated the standard-setting work, as the focus of this year. However, the Shanghai Engineering Research Center for Semiconductor Lighting Feng Xiong, assistant director, said the industry update too fast, the basic 3 to 6 months after the performance there are significant changes, many standards have not yet worked out already out of date. "This is a problem emerging industries." He said.

Industry update speed, and more small and medium enterprises, how to promote industrial development?

On this issue, the Shanghai semiconductor lighting industry incubator Liman Ping, chairman of a profound experience: "We have projects in the organization found during the Expo, semiconductor technology, lighting design is very wide, each company has its own technical expertise, can not cover all. Imagine if there is a platform that can integrate expertise from various enterprises for the World Expo in Shanghai semiconductor lighting industry to contribute, it will be wonderful to pieces. "

Thus, the Shanghai semiconductor lighting industry incubator came into being. This is a transformation in order to promote scientific and technological achievements and train high-tech enterprises and entrepreneurs for the purpose of the technology business services center. Technical support under the market docking, shared network of professional and expert advice incubator 4. Through this platform, many SMEs are in this project, the Shanghai World Expo assigned to share.

Liman Ping told "Science Times" reporter, said that participating in projects such as the Theme Pavilion, the incubator companies are formed under the team to undertake the project, finally found a good effect.

"Set up semiconductor lighting incubator, the biggest job is to market-driven." Liman Ping said that many companies are relatively small, it is difficult for the market, it is difficult for government organizations, large projects. If the organization through the project to integrate enterprise resources, these enterprises will be able to undertake large projects. "This is an experience that left the World Expo." She said excitedly.

Large training through the Expo, a group of companies stand out in Line Has a certain reputation in the industry. Next, an incubator and industrial base linkage of the intention and the surface. "We're like a cradle." Liman Ping said, "want to develop stars entrepreneurs, support for enterprises through a variety of faster development. But our principle is that once they grow, and to leave the incubator space to help us provide better business continue to develop. "

Look forward to every household white light illumination

Landscape lighting is currently high domestic chip performance, but the indoor lighting and functional lighting is still lagging behind. China White LED home insufficient technical capacity.

However, the Shanghai World Expo Park, the main road all the steps made by the white LED lighting, saving energy consumption by 70%.

In the exposition of the "Shanghai Eco-Home", including outdoor landscape lighting and interior functionality, including all lighting, white lighting, LED lighting technology are used. Lighting, general manager of the ear on the pine Cao Dong believes that this indicates that functional white lighting into millions of households possible.

Guo Yansheng said that the future in Shanghai, shops, buildings, street lamps, tunnel bridges public works will be able to see more LED applications, such as Chongming Tunnel will be all-LED lighting. The white LED lighting will also be in 3 to 5 years into people's homes.

In fact, the current home of the market is not without LED product sales, but Liman Ping told reporters, consumers, the absence of specialized equipment is difficult to determine the time of purchase there is the problem.

The reporter was informed, in response to the World Expo, Shanghai semiconductor lighting engineering and technology research centers established a set of technical standards system and evaluation system products, services, World Expo LED product testing and evaluation, as the application of LED products to enter the Expo will provide access to services; this system after the Expo will also have to use LED products, evaluation mechanisms, optimization, add the appropriate standards.

Experts said that if this system of promotion, will be able to LED product life, reliability, energy saving, safety, rationality and other aspects of assessment, to determine market access, and promote the healthy development of LED industry.

Tuesday, March 8, 2011

Germany, the world's shock entertainment center LED landscape walls

Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4

Germany, the world's shock entertainment center LED landscape walls (Photos)

Abstract: LightWild today announced that its O2 World Berlin, Germany, responsible for building entertainment centers and outdoor lighting project was completed and opened in September 10 use, LED landscape wall effect of shock.


Germany, the world's entertainment landscape wall LED


O2 World Berlin, Germany, landscape lighting, LED wall entertainment center


O2 World Berlin, Germany, landscape lighting, LED wall entertainment center

LightWild today announced that its O2 World Berlin, Germany, responsible for the entertainment center (O2 World Arena) architectural exterior lighting project was completed and opened in September 10 use.

The O2 World entertainment center located in front of the lighting landscape facilities, an area of 1400 square meters, by 7000 pixels can be controlled LightWild composition, using a total of 280,000 LED.

O2 World Berlin, Germany, entertainment center will serve as practice ice hockey and basketball teams and competitions using the site, you can also host concerts, concerts and other activities.

Monday, March 7, 2011

2010 Shanghai World Expo LED lighting shine

2010 Shanghai World Expo LED lighting shine
2008 Beijing OlympicsPeriod, from the magnificent opening ceremony to the landmark venues Lighting, To the success of the closing ceremony,LED Lighting Also brought to the world a visual feast. It is reported that in 2010 Shanghai ExpoWill, LED will continue to shine. In the recently held seminar on lighting Shanghai World Expo 2010, ExpoLandscape LightingDesignHas in its profile. Many experts confidence that the application of the Expo LED level of concentration will be less than the Games.

It is understood that at the Expo to make a large area LED applications, the relevantTechnology Continues to mature optimization is the premise. At present, Shanghai Science and Technology Commission hasSemiconductor LightingAs a "special Expo Science and Technology" key focus areas, has supported a number of studies. Many enterprises also have aimed at the business opportunities Expo, trying to break through key technical bottlenecks. According to the Shanghai World Expo will light the chief architect of Architecture and Urban Planning of Tongji University, Professor Hao Luoxi introduction, the exposition of the night lighting design will form the three main axes: the Huangpu River, the Expo Axis and pontoons, as well as major countries across the hall in Pudong elevated area trails. These places will be LED lighting, "shine" place. Among them, the Urban Best Practices Area will become a concentrated demonstration area LED.? A? JP? Y? Z? ^? X??? V112664

White LED lighting is the main trend of the future

White LED lighting is the main trend of the future

In many families, institutions, government and industrial applications, high brightness (HB) White LED (LED) is rapidly replacing incandescent lamps. In the past year, the white light LED Lighting System in general lighting applications accounted for more than 50% more than the final color LED applications, application of colored LED lighting, mainly by the beauty of color demand-driven. Growth of white LED lighting, new drivers is simple: lower energy consumption result in lower tariffs.

In many cases, LED high efficiency can reduce power consumption by up to 88%. They also greatly reduce the lighting and power generation and transmission of electrical energy caused by carbon dioxide emissions. According to research firm Strategies Unlimited, 2012, the total high-brightness white LED lighting market is expected to exceed 50 billion dollars, corresponding to the 2009-2012 compound annual growth rate of 28% (CAGR). This is just the beginning, because the LED luminous efficiency continues to accelerate the commercial / residential lighting market from incandescent, fluorescent and high-pressure sodium lamp with high brightness white LED to change at the same time, LED or even from a commercial point of view has become more cost-effectiveness.

According to some calculations, shifted from traditional incandescent and fluorescent lighting, LED current global total energy consumption could save up to 10%. With accelerated efforts to reduce the total power generation of carbon dioxide emissions, global lighting energy demand by 10% of the potential of this shift played a great role.

Linear Technology Product Marketing Engineer Jeff Gruetter

What factors support such a huge growth potential? First, the current generation of LED luminous efficiency 10 times higher than incandescent, fluorescent and high pressure sodium lamp is (HPS), more than twice, thus greatly reducing the necessary light output (measured in lumens) the necessary power. With the further development of LED, which depend on the efficiency of electric light will continue to increase, and is expected to double within the next few years.

Second, in a very environmentally conscious world, LED lighting does not need treatment, contact and remove the toxic fluorescent mercury vapor in common. Today, most residential lighting systems for cold cathode fluorescent lamp (CCFL) with up to 5mg of mercury, which contain more mercury lamp much more!

Third, the incandescent lamp with 1,000 hours each to replace, and sustainable use of fluorescent lamps up to 10,000 hours, compared, LED life over 100,000 hours. In most applications, this allows LED permanently embedded into the final application, without attachments.

Examples include commercial and residential indoor and outdoor lighting, such as street lamps, industrial lighting, and indoor and outdoor such as power plants and refineries and other hazardous environment lighting. Some applications (such as refinery) run 24 hours a day, LED will continue to use up to 11 years, which means they will need replacing. In addition, LED lighting than other types of several small and flat digital level, can create a very flat form factor, so they can be permanently placed in the internal and external applications.

New York, by the high brightness LED lighting of the bridge.

LED's small size also makes LED into the reflector housing can be made more sophisticated, and thus more efficiently focus light. White LED provides pure "full spectrum" white light, there is no gap in chromatography, leading to the need for reliable visual acuity tasks, we can very easily see it. For example, see color wire, colored flags read or distinguish between water vapor and smoke caused by fire. In contrast, high pressure sodium orange light environment to accomplish the same task may be difficult, because in this lighting environment can not accurately distinguish between colors.

With the human eye can detect changes in comparison to, LED but also to a much faster rate of dimming and on / off, which greatly reduces power consumption. LED lighting can be dimming or off, until they are needed, and then immediately switched to the maximum intensity, and fluorescent or high pressure sodium lamps take up to 30 seconds or longer to reach maximum intensity.

However, the lighting system is one of the biggest challenges facing designers is how to optimize all the benefits of the latest generation of LED. Because LED usually need an accurate and efficient DC current source and a dimming method, so LED Driver IC must be designed in a variety of applications to meet those needs. Power solutions must be efficient, robust, very compact and cost-effective. Can be shown to drive lighting from incandescent, fluorescent and high pressure sodium lighting to LED array change, the fastest growing application will appear in the general internal / external lighting applications, because in such applications, the power to save the return is the largest.

Such as small size, long life, low power consumption, easy to transfer the benefits of light and fast turn time has accelerated the high-brightness LED lighting in the industrial and residential lighting applications, and many have been adopted. LED's long life and small size makes the introduction of new applications in a variety of configurations possible, these applications include in the refrigerator white LED lighting in front of the array, as well as illuminate the more complex the entire campus system. Figure 1 below shows the New York Verrazano Narrows Bridge, the bridge entirely by the high brightness LED lighting. LED high efficiency greatly reduces power requirements, and their long life and durability in a relatively harsh marine environment is particularly important.