Himart LED Sensor Closet Night Light(10 LED Night Light) Work only in darkness, nice illumination at night, and it won't bother anyone until someone comes close enough to activate them. 10 pcs bright white LED, energy-saving and environment friendly Battery Operated: powered by 4pcs AAA batteries(not included) Simple installation: an 3M adhesive strip with magnetic fields is easily attached to and detachable from the lamp body. No tools, screws or nuts are required. Comes with a full 12 month warranty, 30 days money back guarantee