Abstract: LED lighting the history of human revolution, the fourth LED is a semiconductor light emitting device, is recognized as the most promising in the 21st century high-tech products, one of the lead lighting revolution, but also to promote energy conservation , make a significant contribution to environmental protection. With strong government promotion and transfer of global industrial echelon, the future of the landscape lighting will be LED dance era.
Landscape lighting, people can not help but think of the total city's colorful, and bright lights of the clouds over the IPL and swayed. LED, the human history of the fourth revolution in lighting is a LED light-emitting semiconductor components, is recognized as the most promising in the 21st century high-tech products, one of the lead lighting revolution, but also to promote energy conservation, environment make a significant contribution to conservation. With strong government promotion and transfer of global industrial echelon, the future of the landscape lighting will be LED dance era.
Why is favored by the LED landscape lighting
(1) LED lighting has a huge energy-saving effect, the power LED only a single 0.03-0.06W, and low driving voltage (1.5-3.5V), current is small (15-18mA), the same lighting effect in the formation of the case, power consumption of only one-eighth of incandescent, fluorescent one half. LED light source instead of using ordinary visible light and fluorescent lamps for great landscape lighting power consumption, the energy saving effect is very obvious, with strong market competitiveness. And the LED light source 100 times the life of incandescent, fluorescent 20-30 times, eliminating the need for frequent maintenance of the pain, coupled with its rich colors and good controllability for the urban landscape lighting is better than this . Now, LED is the growth rate of 50% to replace the traditional light sources, lighting in the history of mankind will trigger the fourth revolution, greatly improve the human environment, alleviate the increasingly serious energy crisis in the world.
(2) LED light source structure of light (epoxy resin), small size, can adapt to a variety of sizes and different geometry of space, light is solid, not inflated, there is no gas sealing problems, no glass shell, impact resistance, vibration, not broken, determines its strength and stiffness of the lamp light source than other power requirements low. Moreover, LED is a cold light source, controllable, fast response time, can be repeated frequently light off, not tired.
(3) LED light source color pure, rich, any evolution of color than the color metal halide lamp, and its unique decoration. Compact LED light source, it's very good flexibility, can form a variety of point, line, surface, ball shape. According to the purpose of landscape lighting decorative landscaping, LED light source through the microcomputer intelligent control technology, the changes can be made suitable for point, line, surface, ball and other forms, including: flicker (flash) control, suitable for the formation of "points, lines "; gradient (soft variables) control for the formation of" surface "; dynamic change (jump) controlled the formation of patterns for vertical and horizontal dynamic changes. These three changes in the sphere of the rotation can also be formed, in addition to control and can be a single lamp light control group.
Of course, LED is not without flaws.
(1) LED more "precious", the excellent heat dissipation needs for support, constant current driver solutions such as support, improper use, prone to bad light or even "dead lights" phenomenon.
(2) a single LED, low power, in order to obtain high-power, require multiple parallel.
(3) LED color rendering index is low. The LED light color is not displayed under incandescent true, it came from the analysis of spectral distribution, a technical problem.