... ,good quality,perfect performance,CE&ROS Inverter MIG270 mig welding machine IGBT moduleFeatures 1.IGBT Inverter technology,current control, ... voltage change ±15%.3.Electric control,little spatter,stable in welding, good shape.4.Efficient productivity,good welding quality,no dregs,open ... weld heat affect zone,small strain and beautiful look of welding seam.5.Small size, light weight, easy to operate ...