The Mr. Beams MB990 Ultra Bright Wireless Battery Powered Motion Sensing Ceiling Light is a sleek and efficient indoor / outdoor lighting solution. This 2-pack of white ceiling lights are powered by batteries and feature motion sensors. With smooth finishes and LED lighting technology, these lights provide a bright and secure lighting option for your home. Easy to install and requiring no wiring, these lights are a convenient and reliable choice for outdoor illumination. Require 4 D Batteries for each light.