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 Lotos $319.98$319.98
The Lotos MIG225 is the better MIG welder overall, rated 4.1 to 2.6. The Lotos MIG225 leads on value and weight. The Lotos MIG225 costs $4,180.01 less ($319.98 vs $4,499.99).
Miller Multimatic 220 AC/DC
#16 in Dual voltageFull review
An all in one machine for fabricators and car builders who need aluminum TIG as well as MIG and stick. Buyers who never TIG aluminum pay a lot for that feature.
Amazon $4,499.99$4,499.99
Prices were last checked November 1, 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 ($1.42 per amp ($319.98, 225 A maximum) vs $19.57 per amp ($4,499.99, 230 A maximum)) and weight (24.9 lb vs 56 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 | Miller Multimatic 220 AC/DC |
|---|---|---|
| Overall rating | 4.1/5 | 2.6/5 |
| Value 30% | 100 $1.42 per amp ($319.98, 225 A maximum) | 0 $19.57 per amp ($4,499.99, 230 A maximum) |
| Duty cycle 20% | 33 25% at full output (225 A) | 0 20% at 200 A, about 15% at full output |
| Processes 15% | 100 MIG, flux-core, stick, lift TIG, takes a spool gun for aluminum | 100 MIG, flux-core, stick, TIG, takes a spool gun for aluminum |
| Weight 10% | 100 24.9 lb | 44 56 lb |
| Warranty 25% | 50 3-year warranty on the machine | 50 3-year warranty on the machine |
Specifications
| Lotos MIG225 | Miller Multimatic 220 AC/DC | |
|---|---|---|
| Output | ||
| Input voltage | 120/240 V | 120/240 V |
| Maximum output | 225 A (120 A on 120 V) | 230 A (125 A on 120 V) |
| Rated duty cycle | 25% at 225 A | 20% at 200 A, 40 °C |
| 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 | HF TIG |
| Spool gun ready | Yes | Yes |
| Wire sizes | 0.023 to 0.04 in | 0.024 to 0.035 in |
| Largest spool | 2 lb | - |
| Synergic settings | Yes | Yes |
| Build | ||
| Weight | 24.9 lb | 56 lb |
| Warranty | 3 years | 3 years |
| Released | 2024-09 | 2018-11 |