Fisch Inverter System 120A IGBT Inverter Welder WD120MMA Features  - Stronger , more concentrated & more stable arc.  - Effective , power saving , compact , stable arc , good welding pool , high no-load voltage , good capacity of force compensation & multi-use  - Compact in volume , light in weight , easy to install & operate     Spesification Type : WD120MMA Frequency : 50 Hz No-Load Voltage : 70 V Welding Current Range : 20-120 A Rated Welding Current : 120 A Rates Welding Voltage : 24.8 V Rated Duty Cycle : 60 % Usable Electrode : Ø1.6 - 3.2 mm Degrees of Protection : IP 21 Class Of Insulation : H Weight : 3.5 Kg