【Household ventilation fans】quiet, energy-efficient exhaust fan and light combo 110 CFM and 1.0 Sones, 110V 45W(with 15W LED Light), 50/ 60 Hz to help control air quality, reduce moisture, odors, powerful enough for rooms (including bathroom) up to 105 sq. ft. for your convenience | 【ETL Certified bathroom vent fan replacement】stable and durable, fans reduce air leakage by up to a half, resulting in good home performance via blower door tests and reducing cold and warm air backdrafts | 【Integrated fan with LED lighting】15W night light and effective fan components with permanently lubricated motors can be combined or individually wired to wall switches, these combination will help you find your way through the room in the dark | 【Housing dimension】please note the panel size is 11.9 x 11.9 inches/ 30.2 x 30.2cm (L x W), install size is 10.8 x 10.8 inches/ 27.5 x 27.5cm (L x W), duct diameter is 4.0 inches/ 10 cm, resizing your existing ceiling opening will be needed if your current fan housing is smaller | 【Easy installation】quick-start new or replace existing ventilation with retrofit design that can be done entirely from the room-side, no attic access required