Broan QTR080L Ventilation Fan and Light Nearly silent operation 1.0 Sones Bright 100W incandescent lighting and 4W nightlight (bulbs sold separately) Motor engineered for continuous operation Housing Dimension: 10-1/2" x 11-3/8" x 7-5/8"- Fits 2" x 8" construction Grille Dimension: 12-3/8" x 14"