The Firepower 1444-0870 MST 140i 3-in-1 machines come complete with all the necessary MIG and Stick components which gives even a beginner the capability to weld immediately, right out of the box. This machine features MIG, Stick, and TIG processes in a unit that weighs 33 pounds. Farms/Ranches, auto-applications or on-site repair work are just some of the many things that this machine can do. The MST 140i comes with a Quick Start guide that walks you through the machine set-up in four simple steps. The MST 140i uses 115VAC and has a maximum output of 140 Amps. With the MST 140i you can be welding like a pro in no time. MIG (GMAW/FCAW) has 140 Amps with 19 Volts at 15% duty cycle and welding output at 104 degrees fehrenheit has 90 Amps with 18.5 Volts at 20% duty cycle. STICK (SMAW) has 90 Amps with 23 Volts at 15% duty cycle and a welding output at 104 degrees fehrenheit has 80 Amps with 23.2 Volts at 35% duty cycle. TIG (GMAW) has 140 Amps with 15.6 Volts at 15% duty cycle and welding output at 104 degrees fehrenheit has 100 Amps with 14 Volts at 20% duty cycle. The wirefeed speed range is 90-390 IPM and the maximum plate thickness is 3/16 inch.