Motion Sensing Light Socket, Installs As Easy As Changing A Light Bulb, Just Screw Into Existing Light Socket, Then Screw Bulb Into Motion Sensor, Works With Incandescent Bulbs Up To 100W Or Compact Fluorescent Bulbs Up To 50W, Ideal For Indoor Use In, Laundry Rooms, Garages, Basements, Attics, Walk In Closets, Stairways, Hands Free Automatically Turns Light On When Entering & Off After Exiting The Room, Installs Into Existing Light Socket, Senses Movement In All Directions.