Advanced MOSFET inverter technology, with high resistance to high voltage and high temperature. None-contact HF ARC START, ARC START rapid, stable. Capable for both TIG and MMA welding, capable of professional welding demands. AC or DC output is optional and capable of stainless steel, alloy steel carbon steel, brass or other nonferrous metal, or aluminum welding. Pulse TIG mode is specially designed for thin plate aluminum to successfully protect the plate from being welded through. With pulse function to weld thin plate with relevance frequency, will not be broke down, very efficient. Recommandation1 : It can be equipped foot pedal for remote control.