weld 1.IGBT inverter tech,stable performance 2.Stable welding arc,llittle spatter 3.Energy star 4.CE Weld1.IGBT inverter tech, ... under network voltage fluctuation within ±15%3.Stable welding arc, little spatter,deep penetration,beautiful shaping,high welding efficiency4 ... .Slow wire feeding during arc starting,remove the tip ball after welding,reliable arc starting5.Suitable for work piece ...