The key words, when looking for a machine, are Duty Cycle.
This is how many minutes in an hour you can actively lay metal.
The higher the duty cycle, the better the machine
Yes, I’m looking at duty cycle. the I-Mig 353 has 350 max amps at 60% duty cycle, mig and stick, not that I would ever do anything with 350 output amps. But, it’s nice to know that the machine is capable for whatever I would do with it.