We supply a 24v DC power supply with the Machine that supplies power to the motors. This power supply has a wide working range voltage and can work with a Input Voltage：100-240V Input AC Frequency：50-60Hz We supply a IEC power lead that is fitted with a UK lead, so you will need to either cut the plug off the lead and fit a plug to suit your AC wall socket or use an existing IEC lead that you may have already. The controller board is powered with 5 volts from your computer via the connecting USB lead that is supplied with the Mini. The controller is opto-isolated from the motor driver control lines for safety reasons.