... 2.High effective,low consumption, welder. 3. Suit for MMA ,welding. 1.Advanced IGBT inverter and soft-switching technology 2. High ... preset and actual welding current and voltage values.2- IGBT inverter soft-switching technology,high frequency, high efficiency and ... Range(A)20~31520~40020~50020~630Duty Cycle(%)60%Inverter Frequency(KHz)25Efficiencyover 85%Insulation ClassHIPIP21S Dimentions LxWxH(mm ...