RLM Angle Dome, Grade Shade, Perfect for Highlighting Signs and Displays Measurements Diameter:11"Height: 10" 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 FluorescentMetal HalideIncandescentHigh Pressure Sodium ballast requires a remote box(cat# 884RTE or 884SCE) Notes Max. Suggested Wattage: 200W