. 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. Color: White You need to check the switchs' place at the bottom of the adapter. That is: Switch to AC117V,input voltage must be AC110/120V,voltage converter (output) AC220/240V; Switch to AC230V,input voltage must be AC220/240V,And change the voltage into (output) AC110/120V. Attention: it be broken with wrong operation,and we not responsible for the wrong operation. if you are not use it pls plug it out! Package included: 1x Power Converter Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.