SINGWAY 100W 110V/120V to 220V/240V Step-Up&Down Voltage Converter Transformer Travel White Brand new. Ideal for travelling to anywhere. Dual Channel Voltage Converter from 110/120V to 220/240V,also can change from 220/240V to 110/120V. AC117V---AC230V switch The maximum load power is 100W. Make sure which voltage you need before used this adapter.