https://weldmongerstore.com/collections/weldmonger-top-20-products Check out the PrimeWeld TIG 225x on my store that is also available with TIG kit upgrades like the stubby gas lens kit, challenger kit, arsenal kit, and TIG pro kit. This video shows how to set up the machine and how to use 2T and 4T settings with a torch switch and foot pedal. If you have been unclear on 2t and 4t settings with a torch switch, I Hope this Helps. | Welding Tips & Tricks