During the day, the solar panel converts solar power into the rechargeable battery. At night, the light turns on automatically by the stored energy. How long the light lasts depends on its location, weather conditions and seasonal lighting availability
How To Use : There is an "on/off" switch at the top of the panel case. Push the switch to the "on" position and position the light in a sunny location. Charge 6hour.LED 1pc, LED Lamp life 100,000hours. Battery Spec 1.2V600mAh Ni-MH Battery.