Equipped with solar panels, the outdoor wall light is powered by the sun, which supports long-term operation and maximizes energy-efficiency. The wall light can illuminate for 8-10 hours when the battery is full charged. (Warm Tips: The actual lighting time of the light may affected by the intensity of the sunlight at daytime ). With Dusk to Dawn Sensor , the wall lantern is programmed to automatically turns on at dusk or in darkness and turn off at dawn. Since the wall lantern is solar powered, it will automatically charge at daytime when light is turned off which enable save energy and free hands.