Product Review

Instruction:
Make sure which voltage you need before use this adapter, you need to check the switchs' place at the bottom of the adapter.
That is:
A, switch to AC117V, input voltage must be AC110/120V, voltage converter (output) AC220/240V.
B, switch to AC230V, input voltage must be AC220/240V, And change the voltage into (output) AC110/120V.
Attention:
This product can only transform 110V to 220V in American.
It will be broken with wrong operation, and we will not responsible for the wrong operation. If you are not use it please plug it out.
Package includes:
1 x 110V to 220V Step Up/Down Voltage Converter
1 x User Manual