2018 ahp alphatig 200x 200 amp igbt ac dc tig/stick welder with pulse 110v 220v 3 years warranty ahp 3/12/21 update new and improved alphatig 203xi, delivering new smart board technology with an all new rapid set function. the alphatig 203xi delivers pro-level features in an economically minded package that out performs major competitors' models nearest to our price. the alphatig 203xi features include fully adjustable ac frequency and ac balance settings which improve penetration, tungsten life, arc cone and etching width. all new rapid set function can set the machine by simply choosing the size of tungsten and thickness of material for both ac and dc tig welding. stick welding can be chosen by the type of rod and size and the correct amps will automatically be set. the 2t/4t sequencer function allows the unit to be used with a remote switch and enables it to cycle through programmable features such as post flow control, and start & end cycle amps without the need of a foot pedal, this is especially helpful for welding out of position, where a conventional foot pedal may not be useful. the pulse is available for use in both ac and dc modes and features a generous range of frequency control (pps). given the price and features, the 200 amp alpha tig 203xi is an excellent choice for the beginner or the professional fabricator. features: - powerful 200 amp ac/dc tig welder - includes (stick ) mma welding function - ac stick frequency 20-200 / 20-80(ac balance) - capable of handling most welding applications - high frequency tig start - powerful 140amp output on 120v - full 200 amp output on 240v - 60% duty cycle at 200 amps - pulse frequency 0.5 to 200hz - minimum start amps dc 10amps - minimum start amps ac 20amps - 2t/4t function - start and end amps adjustment in 4t mode - nema 6-50 plug wired on cord end - requires a 40 amp breaker