What Amazes me is how well made the everlast welders are made . looking at the circuity boards in this unit looks like they did not cut corner notice had large capacitors and they are using over kill resisters which is good . I have the 250 tig and there plasma cutter . there very well made machines , what is good about the everlast company they take care of you , Had miller tig and it was act of god to get them to help you when something broke . With everlast there rite there to help when something go wrong . there honestly the only company i will buy welding stuff from now on , since of there great service