Your Onefinity machine will come preconfigured for your countries power supply from the factory.
In the event you need to change the voltage, you can do so inside of the controller.
Inside the Onefinity controller is a Meanwell LRS-350-36 power supply.
There is a red switch on the side that allows you to change from 110 to 220.
You will not void your warranty by opening the controller, however, if you don’t have to open your controller, don’t open it 
ALWAYS DISCONNECT POWER FIRST
