... 2.hot start,arc force,overload protection MMA-200I welder 1. Advanced IGBT inverter technology, stable current, steady and intensive arc, high ... protection, under-voltage protection, suitable for TIG and MMA of various metals; 4.Stable arc, high welder speed, little spatter, suitable for ... Degree:IP21Power Factor(cos φ):0.85Weight:6Dimension:39X12.5X24.5CM..... dc inverter MMA-200I welder