RLM Deep Bowl Dome, Industrial Grade Shade, Provides Lamp Shielding and Compact Size(Big photo with AGB101+ACN004&bell box) Measurements Diameter: 16"Height: 14-1/4" 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 FluorescentMetal HalideIncandescentHigh Pressure SodiumNote: A150HPS always requires a remote box (cat# 884RTE or 884SCE) Notes Max Suggested Wattage: 200w