I have used that Esab machine, with that model spoolgun, and it works well. If I remember, the esab has switches for voltage and a fine control dial from there. I ran 1/16 and .045 4043 and 5356 with the spoolgun and .045 steel, it ran good. If you are getting a great deal....buy it. But the one I used belonged to a buddy and he got it new for what I thought was cheap compared to the MM210/ or the Lincoln. Check the new price to know for sure it's a great deal.