Are you looking for a reliable way to reduce your cooling costs while keeping your home cooler and more comfortable year-round? If so, you've found just what you're looking for! Made with top quality materials, craftsmanship and engineering, the iLiving Shutter Exhaust Fan is designed to offer superior ventilation in any space you choose to install to keep your living space cooler and more comfortable year-round while reducing expensive cooling bills. Perfect Cooling and Ventilation Solution For Homes, Attics, Garages, Sheds, Reducing Cooling costs and more. The fan comes fully assembled out of the box; For Variable-Speed-Control feature, recommend to use with a speed controller : ILG8SFRC (Remote Kit) or ILG8SFST (Thermospeed), which is sold separately.