The Solar panel absorbs solar energy and transforms it into electrical energy When night falls, the solar lamp will automatically light up. If it can’t turn on or damaged after many attempts, please tell us soon. Make sure that the solar panel is well exposed to the sun To ensure the normal working of light detector, please install it away from other light sources. If the led doesn’t light up or with just a weak light, please turn on the switch to charging under a place full of sunlight.