An important consideration for electrical appliances such as hairdryers is wattage, i.e not just the voltage. As the average wattage for a hairdryer is typically high, a simple adapter probably wouldn't be suitable.   Transformer or Converter? Technical details The difference between a transformer and converter is the way that they deal with the wave-form of the electricity. Converters simply chop the wave in half. This is relatively simple and can be
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