Amico Power MTS 165 UNBOXING and CONTENT VIEWNominal DC Open Circuit Voltage (OCV) 56V. Synergic controlled, very easy and simple operation. The item mts-165 amp mig/tig/stick arc 3-in-1 combo welder, mig-weld aluminum, 110/230v is in sale since Saturday, March 10, 2018.