S12 AC 110V to 220V 100W Step Up&Down Dual Voltage Converter Transformer Dual Channel Voltage Converter from 110/120V to 220/240V,also can change from 220/240V to 110/120V. The maximum load power is 100W. Ideal for travelling to anywhere. Package included: 1x Power Converter 1X Adapter(one free adapter according to customer 's country)