Automatic ON/OFF-This photocell sensor replaces existing photocells and automatically turns lights ON at dusk and OFF at dawn, light up when it should be to save energy cost | Safe and Security- ETL 773A lighting control standard and FCC PART15, Class B compliance, 50,000 hours lifespan, 5 years warranty | Easy Installation-Mounts in 5/8-inch hole (3/8-inch NPT pipe thread), hard wired to your fixture, Black to Line, White to Neutural, Red to Load | Wide Application-Easy installation make it perfectly work with wall pack, driveway and walkway lighting, post lamp, pole lantern, entry way porch light and other fixtures | Electrical Rating-Input 120V AC, 50/60Hz, Max. load: 100W incandescent, 55W fluorescent, 55W LED driver, Power consumption 0.5W