... spatter 3.Energy star 4.CE welding machinery1.IGBT inverter tech,current-mode control,reliable quality,stable performance2.Closed loop feedback ... control,constant voltage output,workable under network voltage fluctuation within ±15%3.Stable welding ... 3744External Dimensions(L*W*H)600*300*540600*350*580 Good quality welding machinery(CCC&CE)