Etrech Stick-on Anywhere Portable 10-LED Wireless Motion Sensing Closet Cabinet LED Night Lights/Wardrobe Light/Stairs Light/Step Light Bar with Magnetic Strip (Battery Operated) Battery power: use 4 sections AAA batteries(alkaline battery) or rechargeable batteries ( NOT INCLUDED) Easy Installation: an adhesive strip with magnetic fields is easily attached to and detachable from the lamp body. No tools, screws or nuts are required. Aluminum alloy housing, good quality and high fashion, high bright, high sensitivity, low power consumption, long operating life, energy saving. Using advanced PIR sensing technology, it will automatically light up or light off when body enter or leave the sensing area. It can be used in bedroom, bathroom, kitchen, corridor, garret, wardrobe, etc.