Photocontrol, Mounting Turn-Lock, Voltage 120V AC, Max. Wattage 1,800, Max. Incandescent Amps 15 A, Max. Ballast Amps 8.3 A, 10.0 to 20.0 Foot Candles On, 30 to 60 Foot Candles Off, Color Gray, Temp. Range -40 Degrees to 158 Degrees F, Length 3 3/8 in, Width 3 3/8 in, Depth 2 3/8 in, Enclosure Type Raintight, Contact Form SPST, Housing Material Polycarbonate, Setting Dusk to Dawn, Standards UL