Dusk to Dawn Outdoor Lighting Wall Mount Porch Lights Waterproof Wall LampsDusk to Dawn Outdoor Lighting Wall Mount Porch Lights Waterproof Wall Lamps Light Control Sensor Outdoor Wall Sconces: The built in sensor IC in the Dusk to Dawn LED outdoor lighting can sensitively detect the brightness of the surrounding environment. At night, when the ambient light is low and the brightness is less than 10 LUX, the wall lamp will turn on automatically, you can also manually turn off the wall switch to prevent it from staying on.