Turns light on at dusk, and off at user programmed time (2/5/8 hours). When off, it automatically turns lights on when motion is detected, and turns off 10 minutes after last motion is detected. 180 degree detection zone senses activity at distances up to 20 feet away. Fully adjustable sensor - up, down, right and left. For outdoor security - driveways, yards, alleyways. Works with CFL, halogen and incandescent floodlights. White finish.