Air King's LEDAK80, 80 cfm exhaust Fan with LED light features a white polymeric grill secured in place with torsion springs, easily removed if necessary; 11 inch x 13 3/4 inch with moonstone glass lens. Features LED lamp rated 6 watts 450 lumens (75 lumens per watt). 4 watt night light. Includes 4 inch plastic collar for duct connection with back-draft damper for quiet operation. 23 gauge galvanized steel housing; 10 7/8 inch x 9 3/8 inch x 7 7/8". enclosed 4 pole electronically balanced, permanently split capacitor motor is lifetime lubricated and suitable for continuous operation. Rated 115/120 Volts, 60 hz. Balanced, polymeric dual inlet blower wheel 5 1/4 inch diameter, 2 7/8 inch depth, 30 paddles. Housing will mount in ceilings with at least 8 inch of clearance and through drywall thickness up to 3/4 inch with a rough-in opening of 11 1/8 inch x 9 5/8". rated for ceilings insulated to r-40. Housing will mount either between 16 inch or 24 inch on center joists using the 4 supplied housing mounting rails. The housing mounting rails can be adapted for overhead mounting (hardware not provided). side access panel allows you to wire the Fan from inside or outside the housing.