As an inverter MIG welder, you get a decent shot of power and an improved arc from this 120V welding dynamo. The result is not only an increased duty cycle (35%) at its maximum, compared to a typical 20% in comparable transformer models. Add in a lightweight but sturdy body and you get a dynamo entry-level welder that is capable of a weld thickness of ¼ inch in when working with steel. It can also swap up to use flux core if you have the drive roller and will work with aluminum, but you will need to buy an additional spool gun. Plug directly into your home socket, this is a solid starter MIG welder for the amateur or garage use.