Appleton® Code Master™ Jr. Lamp Guard, Dust-Ignitionproof Explosionproof, For Use With: 50 to 150 W Medium Base High Pressure Sodium, 50 to175 W Pulse Start Metal Halide lamp, High-Intensity Discharge Factory Sealed Luminaries, Copper Free Aluminum, Epoxy Powder Coated Finish, 9 in L x 9 in W x 7-1/2 in H Dimensions