Due to the influx of lithium iron phosphate batteries into the market, 3.2V low-voltage solar street lights quickly became popular, Reason is dim-light charging performance is good. 5V modules have lower requirements for light, and the effective long time charging and more charging during the rainy days.

Normally, lithium battery support 2~3 rainy days, although in winter or autumn seasons when there is no sun, battery still can charging and support 2~3 days, but in actual using, once the battery is fully charged, it will not only persist 2~3 days, on the other hand, controller has automatic power reduction, which can automatically reduce the brightness of light according to battery voltage to save power, Measures to increase revenue and reduce expenditure can actually take to 4~6 days in a normal calculation of 2~3 days.