how did I live with out this thing...It keeps up at 150ams (I haven't had to weld with more then that in the 1 mounth I've hade it)the tourch stays nice and cool, I can do long runs with holding close to the tourch head.and even the aluma cup is cooled down enough to touch in minutesI'm running A ck #20 with a stubby gas lens,I have more control then ever!I love this thing,It is a bit noisy, but I'm in my garage I just dont care..