Along with its big brother, the Lightning MTS 275, the Lightning MTS 225 is the latest in the heavy-duty MIG/TIG/STICK series to feature AC/DC TIG welding capability. This new series of features revised synergic function now called "Power Set" and now includes auto set parameters for all three modes. The LIghting MTS 225 is a 200 Amp unit that excels not only in features, it also excels with performance. The new design allows the user to view most all relevant settings simulaneously. This reduces scrolling effort and allows near instantaneous adjustment of all common parameters in use. The new PowerSET function allows the customer to enter basic operating parameters in MIG, TIG, or Stick mode, and automatically selects the proper Amps and Volts (where applicable) for the user, as well as a few other possible adjustments. This new unit also features a Flux-Core mode for operation with most common types of Flux Core wire (without gas/self shielding). As powerful as the welder is, it is also capable of operating on 120V if the unit needs to be carried to the work. Of course, you'll have reduced output, but you will not suffer for lack of available duty cycle. As far as operating duty cycle at full-tilt output, TIG and Stick feature 60% output and MIG features 35% at maximum amperage for the Process. That means, for MIG, at 200 Amps, you'll have 35% duty cycle available. Add the PowerCart 250 and the PowerCool W300 for a convenient, stacked design to complete this welder. If you choose the cooler option, be sure to order the water-cooled torch package for this welder.