| Model | INVERMIG 350WEIII | INVERMIG 500WEIII |
| Input Power (V) | 400 | 400 |
| Rated Input Current (A) | 20 | 31 |
| Rated Open Circuit Voltage(V) | 73 | 73 |
| Welding Current Adjustment Range(A) | MIG30-350/MMA 25-350/TIG 15-350 | MIG30-500/MMA 25-500/TIG 15-500 |
| Rated Output(A) (40℃) | 60%@350 | 60%@500 |
| Weight(kg) | 50 | 50 |
| LxWxH (mm) | 930x420x1130 | 930x420x1130 |