One Piece Polymeric Wheel. White Polymeric Grill. Dimensions: 11"x10-1/2". High Impact Polycarbonate Lens. 100 Watt Maximum, Type A19, Medium Base Bulb, (Not Included). Rated Type Ic for Ceilings Insulated to R-40. Plastic Collar for 4" Duct Connection, Comes Complete with Built In Non-Metallic Back Draft Damper for Quiet Operation. Ul Listed. Hvi2100 Certified. Fan and Light Can Be Wired to Operate Separately.