Function:Pulse TIG/MMA Welding Aluminum. Phase 110 or 220V±15%. This machine TSE225P is a newly upgraded six-in-one multi-function aluminum welding machine, with pulse TIG/MMA welding function, AC/DC, 2T/4T multi-mode conversion, and can DIY welding all metals such as aluminum, copper, steel, iron, etc. The design concept is: “reduce tedious operation steps and improve work efficiency”. The clear operation panel and intuitive data display are convenient for users to operate and greatly improve the user experience. IGBT technology makes the body light and easy to carry. Inverter technology enables the durability of machine work. TIG Welding: Argon gas is required, and how many welding methods are available, such as spot welding, continuous welding, etc. Depends on different welding machine effects and welding machine habits. There is no requirement for the size of the tungsten needle, 1.6, 2.4, 3.2 and other diameters can be used. MMA Welding: Does not require any gas, requires welding rod. The easiest way to solder is to use a non-technical and DIY soldering, depending on the welding effect. All our items (except specified) are guaranteed to be brand new. If you are not satisfied with our service, or the arrived items are damaged, missing parts or items that we have not described, please report to us, we will provide you with a satisfactory solution and work with you to solve the problem. In addition, please don’t leave low score feedback on our account until you get the solution, as this will bring us a heavy blow. Hope to get your understanding.