Lincoln Weld-Pak 90i MIG
#4 in 120 VFull review
A small, light 120 V MIG welder for hobby, auto body and home repair work. It is a good first welder if you don’t need thick steel or other processes.
Amazon $414.99$414.99
3.1/5
A light, cheap flux core welder for occasional repairs around the house and farm. Buy the 90i MIG instead if you might want gas welding later.
- 120 AOutput
- 30% at 90 ADuty cycle
- Flux-coreProcesses
- 120 VInput
Check price at Amazon$328
Price checked November 1, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Plugs into a household 120 V outlet and weighs only 15 lb
- No gas bottle to buy or haul, so it works outdoors in the wind
- Flux core wire handles rusty farm and fence repairs up to 1/4 in
- Three year Lincoln warranty with nationwide service
Cons
- Flux only: no way to add gas later for cleaner sheet metal welds
- Holds 90 A for only 3 minutes in 10
- Runs only small .030 to .035 in wire
The Lincoln Weld-Pak family
Every Lincoln Weld-Pak model we rank, smallest first. Ratings compare each against its own input voltage.
| Model | Output | Rating | Price |
|---|---|---|---|
| Lincoln Weld-Pak 90i FC (this one) | 120 A | 3.1/5 | $328 |
| Lincoln Weld-Pak 90i MIG | 120 A | 3.2/5 | $414.99 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its input voltage. How we rank explains each one.
Specifications
| Model number | K5255-1 |
|---|---|
| Output | |
| Input voltage | 120 V |
| Maximum output | 120 A |
| Rated duty cycle | 30% at 90 A |
| Thickest steel, one pass | 0.25 in |
| Processes and wire | |
| Gas MIG | No |
| Stick | No |
| TIG | No |
| Spool gun ready | No |
| Wire sizes | 0.03 to 0.035 in |
| Synergic settings | No |
| Build | |
| Weight | 15 lb |
| Warranty | 3 years |
Alternatives in this input voltage
Lincoln Power MIG 140 MP
#5 in 120 VFull review
A versatile 120 V shop welder for hobbyists and auto body work who want stick and TIG on the same box. Pick a dual voltage machine if you have 240 V and weld thicker steel.
Amazon $1,178.99$1,178.99
Forney X-Series 140 MIGx
#7 in 120 VFull review
A small, easy 120 V MIG for auto body, sheet metal and light repairs. TruSet and a 3 year warranty make it a safe first gas welder.
Forney $429.99$429.99
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