BROAN QT SERIES FAN WITH LIGHT 80CFM 11-1/4" x 10-3/8" x 7-5/8" housing fits 2" x 8" construction 6" ducting for superior performance Extremely quiet operation Designed to meet Energy Star standards Bright, energy efficient 26 watt fluorescent bulb included 4 watt nightlight on lighted models Motor engineered for continuous operation 4" duct connector UL listed for use over tub/shower with GFCI circuit Grille dimension: Fan/light- 12-3/8" x 14" Boxed Energy star rated fan.