Woods L4700WD Outdoor Twist Lock Light Control with Photocell Photocell automatically turns light ON at dusk and OFF at dawn Use on sports fields, parking lots, commercial buildings, street lights or other NEMA locking plug type connections Time delay eliminates false ON/OFF triggers CFL, LED, incandescent, halogen, mercury vapor or high pressure sodium bulb compatible 120V, 50/60Hz, 1800W Tungsten, 1000VA Ballast