ALR AREA LIGHTING RESEARCH CPGI-ALR-LC-208-277 1000W Twist Lock Outdoor Lighting Photo Control, Residential grade electrical component, Turns light on at dusk, off at dawn, red polycarbonate housing, Replacement photo control use for incandescent, CFL, LED, metal halide, mercury vapor and/or high/low pressure sodium luminaries, 1000 Watts, Heavy duty thermal Bi-metal switch, 30 - 45 time delay, Fail mode is on, 185 - 305 VAC.