Broan qt series ventilation products offer the rare combination of power and extremely quiet operation. Offered with a variety of additional functions such as lights, nightlights and heaters, they also do the job efficiently as most are energy star qualified. New, attractive low-profile grille styling. 36 watt Gu24 fluorescent light – (2-18 watt bulbs included) and 4 watt nightlight (bulb not included). 110 CFM. 0.7 sones. 6-Inch ducting for superior performance. 4W nightlight (bulb sold separately). motor engineered for continuous operation. Ul listed for use over tub/shower with GFCI circuit. Hanger bars for easy, fast and universal installation in all types of construction. Housing dimension: 10-1/2-Inch x 11-3/8-Inch x 7-5/8-Inch. Fits 2-Inch x 8-Inch construction. Can be used to comply with ashrae 62.2 and calgreen. Grille dimension: 13-inch x 13-3/4-Inch.