Vornado 783DC Energy Smart Full-Size Air Circulator Fan with Variable Speed Control and Adjustable HeightIMPORTANT INTERNATIONAL DISCLAIMER: This item is built to meet U.S. voltage requirements and may not function properly when used in conjunction with external devices that alter or convert voltage or frequency of electricity. Improper use or shipping the product outside the U.S. will void all warranties.Combining our classic style with a more-powerful airflow (up to 100′), the brushless DC motor of the 783DC uses up to 80% less energy, bringing modern efficiency to the home. A return to variable speed puts you in precise control of your environment, and our signature Vortex Action creates whole-room circulation, keeping the entire room cool and comfortable. And when adjustability is needed its sturdy stand adjusts to 25”or 38”. We’re proud that the 783DC is designed, engineered and assembled in the USA. And with our 10-year satisfaction , these DC circulators will keep you comfortable for years (and years) to come.Vornado 723DC Energy Smart Full-Size Air Circulator Fan with Variable Speed ControlIMPORTANT INTERNATIONAL DISCLAIMER: This item is built to meet U.S. voltage requirements and may not function properly when used in conjunction with external devices that alter or convert voltage or frequency of electricity. Improper use or shipping the product outside the U.S. will void all warranties.Our new line of Energy Smart air circulators includes the 723DC. Combining our classic style with a more-powerful airflow (up to 100'), the brushless DC motor uses up to 80% less energy, bringing modern efficiency to the home. A return to variable speed puts you in precise control of your environment, and our signature Vortex Action creates whole-room circulation, keeping the entire room cool and comfortable. We're proud that the 723DC is designed, engineered and assembled in the USA. And with our 10-year satisfaction guarantee, these DC circulators will keep you comfortable for years (and years) to come.