RLM Classic Dome, Industrial Grade Shade, Classic Elegance and Simplicity of Design Measurements Diameter: 16"Height: 9-1/4" Special Features This dome is made of 18 gage, cold-rolled steel and coated with genuine powder coat or an exquisite plated finish. Ballast Options Metal HalideFluorescentIncandescentHigh Pressure SodiumNote: A150HPS always requires a remote box(cat#884RTE or 884SCE) Notes Max. Suggested Wattage: 200Neck Type: #2