As a new generation of green lighting, LED has opened up a new way of energy saving and environmental protection in the field of lighting

In the past more than and 10 years, with the continuous progress and development and application of various new materials for semiconductor manufacturing process, various color high brightness LED has made a breakthrough, the luminescence efficiency is greatly improved, the birth of white LED, is a major milestone in the history of the development of LED. As the white LED light close to the sun, can better reflect the true color of the object, which as a new light source to become possible.

LED (LightEmittingDiode) light emitting diode, its core part is composed of P type semiconductor wafer and N type semiconductor (PN), when the forward voltage of PN junction, carriers in semiconductor composite, the release of excess energy caused by photon emission due to visible light, the electrical energy directly into light energy.

The last century in 60s, based on the principle of semiconductor light-emitting, developed the world's first red LED. In the past more than and 10 years, with the continuous progress and development and application of various new materials for semiconductor manufacturing process, various color high brightness LED has made a breakthrough, the luminescence efficiency is greatly improved, the birth of white LED, is a major milestone in the history of the development of LED. As the white LED light close to the sun, can better reflect the true color of the object, which as a new light source to become possible.

Compared with the traditional lighting source, white LED has high luminous efficiency (90% of the electrical energy into visible light), low heat (no heat radiation), long life (the average life expectancy of 50 thousand to 100 thousand hours), green (mercury, sodium lamp does not contain harmful metal elements, easy recovery etc.).

LED as a solid state light source, no lamp holder and lamp socket connection mechanism, led firmly fixed on the lamp board, vibration resistance, impact resistance, not easy to break. Single drive voltage, low current, short start-up time, no stroboscopic phenomenon, there is no starting delay problem, its development in the lighting market is worth looking forward to.

At present, the high power white LED in the laboratory optical efficiency has exceeded 100lm/W, and has been gradually applied to the commercial field. With the market demand and the human desire for LED lighting as soon as possible to promote the field of general lighting, promoting the rapid development of high-power white LED technology, the near future, LED light effect will reach or exceed 200lm/W, more than the current highest efficiency of light gas discharge light source. In the global energy crisis intensifies, the environmental pressure is more and more big, green LED as a new generation of lighting source unique energy saving and environmental protection, safety, longevity and other advantages, has opened up a new way of lighting energy saving and environmental protection.