... noise stable welding arc,wonderful welding shape,energy-saving,lightness,minimizing 1.It adopt MOSFET/IGBT inverter technology, ... easily arc,small flash,low noise stable welding arc,wonderful welding shape5.Being able to continue running ... every kind of acid or alkaline jointings with welding rodRated Input Voltage:AC230V±15%Rated Input ... Class:BProtection Class:IP21 DC INVERTER WELDING MACHINE