
The first unit wouldn't even turn on, sent it back and replaced it immediately. The second unit worked fine except the TIG amp regulator only worked from 180-200, NOT from 10-200 amps. Sent a second one back and settled on a brand (Primeweld) that offers 24/7 US customer service and a 3 year warranty. Mellcom has NO email or phone number, nothing to contact them with any problem or question. My advice stay away from this unit, thank goodness the return/exchange process is easy! But who wants to box up a problematic device to get another? I have more important things to do when the time comes.

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