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 3.0. The Lotos MIG225 leads on value and weight. The Lotos MIG225 costs $1,805.02 less ($319.98 vs $2,125).
Miller Multimatic 215 PRO
#10 in Dual voltageFull review
A portable all process machine for fabricators and serious hobbyists who weld steel and stainless in many ways. Buyers who need aluminum TIG should look at an AC/DC machine.
Amazon $2,125$2,125
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 $9.24 per amp ($2,125, 230 A maximum)) and weight (24.9 lb vs 35 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 215 PRO |
|---|---|---|
| Overall rating | 4.1/5 | 3.0/5 |
| Value 30% | 100 $1.42 per amp ($319.98, 225 A maximum) | 0 $9.24 per amp ($2,125, 230 A maximum) |
| Duty cycle 20% | 33 25% at full output (225 A) | 37 30% at 215 A, about 26% 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 | 82 35 lb |
| Warranty 25% | 50 3-year warranty on the machine | 50 3-year warranty on the machine |
Specifications
| Lotos MIG225 | Miller Multimatic 215 PRO | |
|---|---|---|
| Output | ||
| Input voltage | 120/240 V | 120/240 V |
| Maximum output | 225 A (120 A on 120 V) | 230 A (140 A on 120 V) |
| Rated duty cycle | 25% at 225 A | 30% at 215 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 | Lift TIG |
| Spool gun ready | Yes | Yes |
| Wire sizes | 0.023 to 0.04 in | 0.024 to 0.045 in |
| Largest spool | 2 lb | - |
| Synergic settings | Yes | Yes |
| Build | ||
| Weight | 24.9 lb | 35 lb |
| Warranty | 3 years | 3 years |
| Released | 2024-09 | 2025-12-16 |