The Mac Tools Synergic Pro MP Welder, No. MW190S, has a simple and fast setup time. It can be powered by 110V or 220V and its Power Factor Correction (PFC) equalizes voltage highs and lows from the power supply to create consistency in the welding process. It also offers arc compensation for consistent welds and all welding options (MIG, TIG, stick, and aluminum MIG). Users are able to weld with steel, stainless steel, flux core, and aluminum wire. The welder is portable, weighing just 30 lbs and is spool gun ready.