Motion-activated bright ceiling light that installs in minutes without wires. Great solution to light up closets, attics, showers, sheds, pantries, gazebos, rv"s, boats and many other dark areas. Bright led never needs to be replaced. Motion sensor detects at 15 foot to turn on light automatically. Ceiling light turns off automatically in 30 seconds if no motion is detected. 80 lumens lights up an area of more than 150 square feet. Light sensor keeps light off during the day. Weatherproof for outdoor applications. Operates more than one year on a set of 3 C batteries (not included). 1-year limited warranty. Dimensions: 4.75″ x 4.75″ x 2″. Weight: 0.45lbs.