How many watts does solar street light normally use

Solar street light is now seen more and more on the road, the main reason is that it is green, low-carbon and environmentally friendly, with low power consumption, high luminous efficiency and long service life. So now the upgrade of municipal road street lights will consider solar street light first. Let the professional solar street light manufacturers introduce the characteristics of solar street light to us. 1. Luminous efficiency With the advancement of technology, LED technology has become more and more mature, and high-power LED light sources can already meet the needs of general street lamps. The luminous efficiency of the general high-pressure sodium lamp is 100LM/W, the commonly used high-power LED is 50-60LM/W, and the best foreign LED chips can reach 80LM/W. The higher the luminous efficiency, the better the energy-saving effect. It is also one of the most important indicators for choosing solar street light. However, this is not clearly specified in the LED standard, so it must be carefully confirmed when purchasing solar street light. 2. Light decay In order to reduce manufacturing costs, some street lamp manufacturers only use hundreds of 0.5W low-power LEDs. However, the light decay of this low-power LED is very serious, and the life span of the light decay to 80% is 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 high-power LEDs (generally more than 30W) are selected, the light decay will be much better.
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