Don't leave lights on needlessly running up the electric bill.
SENSITIVE MOTION SENSOR & HANDWAVE ACTIVATED - With passive infrared technology (PIR), Bell+Howell Motion Activated Light auto on when it detects human motion within 10ft in the dark, auto-off after the 20s of no motion detected helps saving energy; In Hand Wave Sensor Mode, when you wave your hand to block the hand scan sensor, the light will auto on and when you wave again auto ofEASY TO INSTALL - No tools, screws, or nuts are required.): 0.6 Height/InchesWeight (lb.