Nutone HD80LNT Heavy Duty 80 CFM Heavy Duty Fan w/Light 80 CFM, 2.5 Sones, Type IC Durable, Quiet, Centrifugal Blower Wheel Totally Enclosed Motor Design for Continuous Operation Lasts up to Three Times Longer than Residential Units 100W Incandescent Lighting (Bulb Not Included) UL Listed for Use Over Tub or Shower when Installed in a GFCI Protected Branch Circuit Permanently Lubricated Motor. Resilient Motor Mounts Isolate Vibration Uses Standard 4" Round Duct Fits 2": x 6" Ceiling Construction Pre-Wired Outlet Box for Plug-In Motor Plate AMCA Licensed for both Air and Sound