400 Watt low bay lighting has quad voltage of 120V/208V/240V/277V and heavy-duty die-cast aluminum housing. White powder-coat finish on housing and reflector. For use indoors when ceiling height is less than 15 feet. Complete with hook and lamp. UL & CUL listed. Bulb Type: Metal Halide.Watts: 400.Volts: 120, 208, 240, 277.Reflector Diameter: 16in.Reflector Type: Aluminum/Prismatic refractor.Light Type: Low Bay.Dimensions L x W x H: 18 x 18 x1 8in.Model L-1782-400W-MH