Foreign electricity (220/240V) is different from U.S electricity (110/120V). To use your travel appliances overseas, you must use a converter to reduce foreign electricity, otherwise, your appliance will not operate. Using a foreign travel converter is simple, just plug it into the foreign wall outlet, then plug your appliance into the female side of this converter and use your appliance as you would at home. Operate your 110V/120V electric appliances or electronic devices overseas in countries using 220V/240V. Step down from 220V/240V AC to 110V/120V AC Input: 220V/240V AC round pin plug Output: 110V/120V AC flat blade Power: for electronic devices/electric appliances of up to 1650W such as hair dryers, irons, hair setters, electric hair curlers, coffee makers, heaters, toasters, coffee cup heaters, clothing steamers, and much more.