LE waterproof lamp D lamp carefully choose and buy

Yangzhou yingli solar street lamp manufacturers, LED lights when the choose and buy must not be blind, to pay attention to the following points: the LED luminous efficiency increasingly mature technology, high power LED light source can meet the general street light needed. General high pressure sodium lamp lighting is



yangzhou yingli solar street lamp manufacturers, LED lights when the choose and buy must not be blind, to pay attention to the following points: light emitting efficiency of LED technology matures, high-power LED 【 High power LED refers to the light emitting diode with large rated power. 】 Light source can meet the general street light needed. The average high pressure sodium lamp light efficiency is 100 lm/W, commonly used in high power LED is 50 - 60 lm/W, with abroad the best LED chips can reach 80 lm/W, the higher luminous efficiency, energy saving effect means that the better, it is also a choice LED street lamp 【 LED street lamp is made of street lamp, LED lamps and lanterns with high efficiency, safety, energy saving, environmental protection, long service life, fast response speed, high color rendering index of unique advantages, the city lighting energy saving is of great significance. 】 One of the most important indicator. Droop some businessmen in order to reduce costs, with hundreds of 0. 5 w power LED, however, this kind of small power LED light failure is very serious, its light failure and 80% of life is only 1000 hours. As the need for long-term use, so the street lamp is absolutely not allowed the use of this kind of small power LED, selects the high power LED Generally refers to more than 30 w) , the light failure will be much better. Problem of LED street light weight due to the complexity of high technical content, composition and so on reasons, some high power lamp holder will weigh far more than ordinary high pressure sodium lamp, so the support for the corresponding material requirements are higher. But some LED lights manufacturer has as much as possible to reduce the weight of the LED lamp holder, from the original single lamp holder about 30 kilograms, dropped more than 10 kilograms, weight loss and the trend of decline further. Heat dissipation LED because is semiconductor components, the wafer is affected by temperature and reduced to 30% of the initial luminous flux will lose the meaning of lighting, or put an end to the life, the life of the high power LED street light in theory - 3 50000 hours, but the premise is have good heat resistance.