Grill is 13-1/2 diameter Ribbed frosted glass light lens 2 - 60 watt maximum, type A19, medium base bulbs, bulbs not included One piece polymeric wheel Plastic duct collar for 4 duct connection, comes complete with built in non-metallic back draft damper for quiet operation Rated Type IC for ceilings insulated to R-40 UL Listed HVI2100 Certified Nickel CFM=70 Sones=4