The lightweight (45 lb.) Millermatic Passport Plus all-in-one MIG welder features a three-position material selection switch that enables the operator to set optimal arc characteristics for steel, stainless steel and aluminum. In combination with the new direct-connect Spoolmate 100 Series spool gun, it provides optimal performance on 18-gauge through 1/4-in. aluminum. Multi-voltage plug (MVP) and Auto-Line power management technology enables it to connect to either 115V or 230V power simply by changing to the correct screw-in plug. The unit can carry up to an 8-in. spool of wire and an internal 12-oz. bottle of CO2 for approximately 25 minutes worth of arc time on mild steel.