For a tiny inverter welder this thing works amazingly well at only 110v with a dirty crowbar angle and in my opinion it worked surprisingly well. I use 1/8 and 5/32 7018s at work so it took me a while to get used to the swing of the full size 3/32 rod but aside from my personal flaws this thing worked great! It could easily do DIY projects like coffee tables or small repairs with 110V only. I haven't used it on 220V so I don't have an opinion on that, but I think if you keep a duty cycle you'll be fine.