Using microwave body sensing technology makes it more energy-efficient, light on when sensing motion, dim light when sension no motion. Polycrystalline Solar Panel convert solar energy into electricity, more environmentally friendly. High hardness, sealed and IP65 Waterproof, easy to install and durable. High bright COB motion sensor solar area light for outdoor security use. Automatic working mode There is no switch for the solar ladder lamp, just pull out the insulator to use. On sunny days, it takes only 4-5 hours to fully charge. It can turn on automatically at dusk and turn off automatically at dawn.