Unique design : rotary wind direction. Strong windy available. Side air input promotes air convection and reach even temperature effects of every corners. Space saving : to be mounted with ultra-thin line of light steel frame on the ceiling to save ground space. Can easily shift to different locations. Power saving : to match with air-conditioning or heaters to maximize energy-saving effect. Reasonable cost : affordable price and easy to install. Security : the protection of unique design, safe and easy to use and clean. Remote control included. Convenience : both voltages of 110v and 220v are available. Size : 2 x 2 x 0.66 ft Weight : 4.5 kg.