EMMELINE WATKINS / SCIENCE PHOTO LIBRARY EMMELINE WATKINS / SCIENCE PHOTO LIBRARY
Voltage converter. This device is also known as a voltage transformer and can be used to increase or decrease the voltage of an electrical power source. This step-up/ down converter allows the conversion down of 220/240 volts to 110/120 volts and the conversion up of 110/120 volts to 220/240 volts.
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