Lotos MIG225
#4 in Dual voltageFull review
A cheap dual voltage multiprocess welder with real 240 V output and a 3 year warranty. Good for a home shop that mostly welds short beads on mild steel.
Amazon $399.98$399.98
The Lotos MIG225 is the better MIG welder overall, rated 4.1 to 2.8. The Lotos MIG225 leads on value, warranty and weight. The Lotos MIG225 costs $700.01 less ($399.98 vs $1,099.99).
Vulcan OmniPro 220
#15 in Dual voltageFull review
A full featured dual voltage multiprocess welder you can buy off the shelf at Harbor Freight. The easy synergic setup is the draw, but the 90 day warranty is a real drawback at this price.
Harbor Freight $1,099.99$1,099.99
Prices were last checked November 3, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Lotos MIG225 for value ($1.78 per amp ($399.98, 225 A maximum) vs $5 per amp ($1,099.99, 220 A maximum)), warranty (3-year warranty on the machine vs 0.2-year warranty on the machine) and weight (24.9 lb vs 49 lb).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every dual voltage MIG welder; a clear win is highlighted. How we rank explains each one.
| Factor weight | Lotos MIG225 | Vulcan OmniPro 220 |
|---|---|---|
| Overall rating | 4.1/5 | 2.8/5 |
| Value 30% | 100 $1.78 per amp ($399.98, 225 A maximum) | 46 $5 per amp ($1,099.99, 220 A maximum) |
| Duty cycle 20% | 33 25% at full output (225 A) | 19 25% at 200 A, about 21% at full output |
| Processes 15% | 100 MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum | 100 MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum |
| Weight 10% | 100 24.9 lb | 56 49 lb |
| Warranty 25% | 50 3-year warranty on the machine | 0 0.2-year warranty on the machine |
Specifications
| Lotos MIG225 | Vulcan OmniPro 220 | |
|---|---|---|
| Output | ||
| Input voltage | 120/240 V | 120/240 V |
| Maximum output | 225 A (120 A on 120 V) | 220 A (140 A on 120 V) |
| Rated duty cycle | 25% at 225 A | 25% at 200 A |
| Thickest steel, one pass | 0.4 in | 0.375 in |
| Inverter | Yes | Yes |
| Processes and wire | ||
| Gas MIG | Yes | Yes |
| Stick | Yes | Yes |
| TIG | Lift TIG | Lift TIG |
| Spool gun ready | Yes | Yes |
| Wire sizes | 0.023 to 0.04 in | 0.025 to 0.045 in |
| Largest spool | 2 lb | 12 lb |
| Synergic settings | Yes | Yes |
| Build | ||
| Weight | 24.9 lb | 49 lb |
| Warranty | 3 years | 0.2 years |
| Released | 2024-09 | 2019-09 |