Lutron's Maestro MS-OPS6-DDV-WH combines two circuits into one sensor. Using passive infrared (PIR) technology, this white occupancy sensor is a frugal solution that saves energy and adds light automation to your home. The sensor turns lights on when it detects you in a room and switches off after you leave. With an adjustable timeout setting (1, 5, 15, or 30 minutes), you can control how long you want the light to stay on. With an Ambient Light Detection mode, you can program the sensor to turn lights on when natural light in the room is low. The Maestro sensor is suitable for most load types, including many CFL and LED bulbs.