NuTone premier Ultra Silent Ventilation Fan with Light and Night Light: 130 CFM; Model QTN130LE High air volume rate: 130 cubic feet per minute Functions: Fan, light, and night light Quiet: A low wound level of only 1.5 sones 4-inch duct fits a wide range of applications Energy Efficient: Uses (2) 18W (max.) high-efficiency, type GU24 based fluorescent lamps and (1) 4W (max.) type C7 incandescent bulb for nightlight (bulbs sold separately)