digital controlled inverter-multi process welding power source adopts DSP( digital signal processor) , IGBT and nanocrystal material as magnetic core in main transformer, enjoy high performance and all-in-one function, which has many more advantages compared with the traditional welding power source. Features: 1 Adjustment of minimum welding current is as low as 10A( MMA) 2 When using MMA, arc force mode of both vertical and slope 3 Ajustable arc length( short or long) to compensate lenght of welding cable 4 Work with control box to adjust current in distance, core or coreless 5 Enhanced power source gives excellent performance of MMA when welding with cellulose type electrodes such as 7018, 6013( optional) 6 Low energy consumption and small size 7 Fan-as-need, Only operates when needed to reduce power consumption, noise and dust in machine. 8 MMA still gives high performance when using up to 200 meter of welding cable