LED lighting technology matures, high-power LED light source is required to meet the general street light flux. The luminous efficiency of HPS is generally 100LM / W, is commonly used high-power LED 50-60LM / W, with the best foreign LED chip can be achieved 80LM / W, the higher luminous efficiency, better energy saving means, which also select one of the most important indicators of LED lights. However, LED standards in this regard have not been clearly defined, it must be carefully recognized when purchasing LED lights.
Some companies, in order to reduce costs, use hundreds of 0.5W low power LED. However, this low-power LED light failure is very serious, the light fades to 80% of the life of only 1,000 hours. Therefore, the need for long-term use as street lights is absolutely not allowed to use this low-power LED, the choice of powerful LED (30W generally refers to above), it would be much better light fades.
Due to the high-tech LED lights, complex composition and other reasons, some of the high-power lamp will far exceed the weight of ordinary high-pressure sodium lamps, so the corresponding support material requirements more higher. However, some manufacturers have LED street light LED lamp as much as possible to reduce the weight from the original single lamp about 30 kg, down more than 10 kg, and a further decline to reduce weight.
Because LED is a semiconductor components, and its chips affected by the temperature decreases to 30% of the initial luminous flux, it will lose the sense of lighting, which is the end of life, the theory of high-power LED street lamp life of 30,000 to 50,000 hours, but which is an important prerequisite for good heat dissipation. It is worth mentioning that the country has adopted the world’s leading manufacturers of needle cooling technology.