Advanced IGBT inverter technology: Excellent arc welding performance. Mini welder supports welding rods of 2.5mm-3.2mm, suit for welding carbon steel, stainless steel and other metals, can achieve the perfect weld. The welding machine has a knob to support the needs of different current adjustments, current adjustment range is 20 to 250A. Pure copper core cable, ensure a stable current output, LCD digital display is easy to read, even a novices can use it proficiently. Mini size and light weight. Portable carry with adjustable shoulder strap, it is convenient for welding indoors and outdoors. Built-in excellent anti-stick, dig-arc force, hot start and other functions, easy to strike an arc, little spatter. ARC welder have protection equipment are set internally to prevent over heat, improve welding efficiency and ensure safety. High quality and Dual voltage input design. The machine itself support 220V.