LED Montion Sensing Night Light Bar Wireless With Magnetic Strip 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 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 Battery Operated: powered by 4pcs AAA batteries (not included) 10 pcs bright white LED, energy-saving and environment friendly Night Light won't light up during day time when it is bright enough