There are advantages of inverter welding units over traditional transformer-rectifiers are many, they are more portable and lighter weight, making them easier to maneuver around the job site. In addition, inverters offer high-quality, multi-process welding capabilities so that one machine can handle Stick, MIG, TIG, FCAW, arc gouging and even pulsing.
Source: https://www.ewelders.com.au/welders/inverter/
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