Energy Star, 110 CFM, 1.5 Sone Bath Fan & Light, 4W Night Light, Quietest, Powerful & Stylish Fan, 4" Ducting, Includes Hanger Bar System For Fast & Flexible Installations For All Types Of Construction, Fits In 2" x 8" Ceiling Construction, 10-1/2" x 11-3/8" x 7-5/8" High Housing, 12-3/8" x 14" Grille, Fluorescent Lighting Is Title 24 Compliant, Uses 42W Fluorescent Bulb, Not Included, 3 Year Warranty.