I have a Lincoln Migpac 130 and it works great off 110 volts, but it requires a 20 amp circuit. I have not reached it's duty cycle maximum even welding pretty heavy square tubing, but then I wasn't welding any beads more than 3" long in one pass. If you are having problems with your flux core wire not keeping an arc, then your polarity is wrong (flux core and mig welding require opposite polarity) or your feed speed is wrong or your gun tip is worn out or your ground clamp isn't clamped on right. You have to clean the metal where you put it on too, and a lot of people overlook that. Also, clip the end of the wire off if you are having trouble striking an arc, because if it gets a ball end it won't strike well. A pointy end makes the arc strike much cleaner.
