Metal Halide Light Fixture, Hazardous Location Fixture Type, Metal Halide Pulse Start Lamp Type, Lamp Quantity 1, Lamp Designation M137, Lamp Watts 175, Fixture Wattage 175, Voltage 120-208-240-277, No Lamp Included, Ambient Temp. Range -40 to 149 Degrees F, Housing Material Copper-Free Aluminum, Tan Housing Finish, Length 13-9/16 In., Height 5-3/8 In., Width 11-7/8 In.