Outdoor Post Eye Light Control With Photocell, Controls Driveway & Walkway Lighting, Post Lamps, Pole Lanterns, Coach & Entry Way Porch Lights & Other Outdoor Fixtures, Arrive To A Safe & Secure Home, Turns Light On At Dusk & Off At Dawn, Replacement Photocell For Post Lamps & Pole Lanterns, Works With Incandescent, Fluorescent, LED, Halogen, Mercury Vapor Or High Pressure Sodium Bulbs & Is Compact Fluorescent Light Compatible, Requires No Seasonal Adjustments, Photo Control Activates With The Absence Of Light Time Delay Eliminates Flicker & False On/Off Triggers Due To Stray Car Light CUL Listed.