Manual Voltage Regulator Category Voltage Transformers Model MVR-20 Special Features MVR product is an AC voltage converting device, Using it convert the multi-kind net voltage into a general output voltage under which all the electronic units are, safe for use within the rated power rangee. *Input Voltage: AC 40V -120V or 140V - 240V *Shows the output voltage directive *Output Voltage: AC 110V/220V Brand Name GOLDSOURCE Green Product Yes Place of Origin CHINA Safety/Quality Approvals