Are hundreds of watts of solar street lights real

As we mentioned previously, a 3.2 voltage system can support led power no more than 20watt. So if you deal with serious solar street lights projects for government, the key specification is not led by power but also the luminous efficacy of the whole solar light fixtures.

Take the 6000 lumens all in one solar street lights for example, if we use 150 lumens per watt led solution, we need to set 70 watts solar panel and 12V 30AH lithium battery. If we use 200 lumens per watt led solution instead, led power can be 30 watts only. Then we can low down the solar panel power to 50 watts and lithium battery to 12V 22ah.

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.

Solar street lights are also common in various roads and public lighting places. The price of solar lights can be as cheap as tens of dollars or as expensive as hundreds of dollars. The solar lamp with dozens of dollars is used in the home, the brightness is low, the lighting time is short, and the life span is about one year.

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.

And the 3 key points to judge the quality of the solar lights are the brightness（lumens), the lighting time in the night, and the cloudy days and the life span. The main material that determines the life of solar street lights is the lithium battery.