QGSTAR Portable LED Wireless Motion Sensing Light Bar For Cabinet Stair Hallway Washroom With Magnetic Strip Stick-on Anywhere Battery Operated Simple installation: an adhesive strip with magnetic fields is easily attached to and detachable from the lamp body. No tools, screws or nuts are required Adopting the environment illumination recognition technology: daytime and night mode Automatic sensing: the light will light up when you get within 3 meter of it and will go out 15 seconds after you walk out of its sensing range High bright, high sensitivity, low power consumption, long operating life, energy saving Battery power: use 4 sections AAA batteries(alkaline battery) or rechargeable batteries