Leviton C20-09863-SEN Occupancy Sensor Bi Pin Fluorescent Ceiling Lampholder Leviton C20-09863-SEN Occupancy Sensor Bi Pin Fluorescent Ceiling Lampholder Features: Ceiling lampholder Install in closets, workrooms, basements, storage areas, utility rooms and attics Suitable for indoor use only Lights turn on automatically when motion is detected and off after 3 minutes of inactivity Green LED indicator light blinks when motion is detected 284 degrees field of view Built of tough thermoplastic Polycarbonate twist off lamp guard Four knockout holes on box to position for maximum coverage