Voltage converters and voltage transformers change electric current from 220/240 Volt (Foreign Electricity) to 110/120 Volt (U.S. Electricity) which is called step down. There are step up voltage converters that change 110/120 Volt (U.S. Electricity) to 220/240 Volt (Foreign Electricity) and Voltage regulator converters that can Step up and Step Down which are 10-220 volts 50/60 HZ for use anywhere!
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AUTOMATIC Deluxe Step Up & Down Voltage Regulators (CE Appr)
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