Franzus Auto Adjust Smart Converter 2000 Watt Converter / Adapter Set contains breakthrough technology that makes for mistake-free use. Dual wattage converter automatically senses and selects high (2000 watt) or low (50 watt) setting. Converts 220V foreign electricity to 110V for use on low wattage (0-49 watts) appliances such as electric shavers, battery chargers, etc. and for high wattage (50-2000 watts) appliances such as some hair dryers, irons, etc.