How to choose LED street lights ?

1. Luminous efficiency
LED lighting technology is becoming more and more mature, and high-power LED light sources can already need the luminous flux required by general street lamps. The higher the luminous efficiency, the better the energy-saving effect, which is one of the most important indicators for choosing LED street lights.
2. The light decay of LED street lights
Some businesses now use hundreds of low-power LEDs of 0.5W in order to reduce costs and thereby reduce the price of selling LED street lights. However, the light decay of this low-power LED is very serious, and its light decay to 80% has a life span of only 1000 hours. Therefore, as a street lamp that needs to be used for a long time, it is absolutely not allowed to use such low-power LEDs. If you choose high-power LEDs (generally more than 30W), the light decay will be much better.
3. The self-weight problem of LED street lights
Due to the high technical content and complex composition of LED street lamps, the weight of some high-power lamp holders will far exceed that of ordinary high-pressure sodium lamps, so the requirements for corresponding supporting materials are higher. However, some LED street lamp manufacturers have tried their best to reduce the self-weight of the LED lamp holder, from about 30 kg per lamp holder to more than 10 kg, and the weight reduction has a further downward trend.
4. Heat dissipation of LED street lights

Because LEDs are semiconductor components, when their wafers are affected by temperature and reduce to 30% of the initial luminous flux, they will lose the meaning of lighting, that is, the end of life. Theoretically, the lifespan of high-power LED street lights is 30,000 to 50,000 hours, but The important prerequisite is good heat dissipation.