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.

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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.

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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.
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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

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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.


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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.

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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.