3-in-1 WELDER - Uses state-of-the-art inverter technology to achieve MIG/TIG/MMA (Arc).INVERTER TECHNOLOGY - Offers many advantages over traditional transformer type welders, giving greater duty cycles and more power factor efficiency.FAN COOLED - DC power supply for MIG and TIG, suitable to weld steel, stainless steel, copper, nickel, titanium, and their alloys.ALSO SUITABLE FOR ARC WELDING - A variety of rods including rutile, basic and stainless from Ø1.6 to Ø4mm.FULLY FUNCTIONAL - LCD front panel with easy to follow set-up.UP TO FOUR SET UPS - Can be saved on the machine for fast loading.SWITCHABLE - Between MIG, TIG* or MMA* welding modes (*optional torches required).3 YEAR GUARANTEE*.