ref Sealey, my son has a 180 Super or something. Even I can use it , poorly
It's been brilliant and has a real life long duty cycle. No idea what the manual says but I've seen the boy weld all day solid and no issues. It does the skinny tea bag steel a la T2 as well as pretty damn thick stuff . Spot welds really well also.
As said above please try and spend a few quid more and get one that does the job proper like innit