ChiTronic 2-Pack Intelligent Cordless Motion Sensor Cabinet Closet Wall Light, 3xAAA Battery Power (not included), Yellow Light Automatic sensing: the light will light up when you get within 3 meter of it and will go out 20 seconds after you walk out of its sensing range. Compact size for anywhere mounting: carbinet, closet,drawer, corridor, aisle, hallway, washroom, basin, stair hall,doorway, basement, baby room. Simple installation: easily attached to and detachable from the lamp body. No electric wire or drilling required. 5 pcs bright white LED, energy-saving and environment friendly. Battery Operated: powered by 3pcs AAA batteries(not included).