How long does a solar street light work on a rainy day?

The length of time a solar street light can work on a rainy day depends on a number of factors, including the battery capacity, the intelligent adjustment function of the controller, and the design of the street light. In general, a standard configuration solar street light can cope with about 3 to 5 consecutive cloudy and rainy days, but the brightness will be reduced. With the automatic power-down function of the intelligent controller, it is possible to extend the lighting time with limited power, possibly up to 6 to 8 cloudy and rainy days, although the brightness will be significantly reduced at this point. For specially designed solar street lamps with higher low light charging performance, they can maintain brighter illumination even after longer continuous cloudy and rainy days, up to 15 days or more, but with normal brightness at the beginning and then gradually weakening. The actual working time needs to be determined according to the specific product specification and local climate conditions.