Ready weld 2 Portable spool gun welder. This gun runs off of batteries 18, 24, 36 volts. It can use flux core, SST, Aluminum or Mig wire. It has gas line to use either aragon , co2 or c25 gas. Off Roaders use these guns for on the spot fixes when off road. I have used it two time for Aluminum. Just don't use it as much as I thought I would. It's also great for some one who doesn't have a lot of room for a larger machine. Pickup only.