Photocontrol Mounting 1/2 in Conduit Flush Voltage 208 to 277V AC Max Wattage 1 800 Max Incandescent Amps 9 A Max Ballast Amps 4.6 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 2 7/8 in Width 1 1/3 in Depth 1 1/3 in Enclosure Type Raintight Contact Form SPST Housing Material Polycarbonate Setting Dusk to Dawn Standards UL Includes Lock Nut Washer Gasket