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S7

200A 4-in-1 MIG Welder 110V/220V, Gas & Gasless Flux Core Welding Machine, Lift TIG/Stick/MMA Welder, Synergic Control, Large Digital Display, IGBT Inverter for DIY, Home Repair, Garage

  • Based on 479 reviews
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Features

  • 4-in-1 Multi-Process MIG Welder:This 200A welder supports Gas MIG, Gasless Flux Core MIG, Lift TIG and Stick/MMA welding, giving you one machine for home repair, DIY fabrication, garage projects and light workshop use. Works with flux-cored wire, solid wire, stainless steel wire and silicon bronze wire for more flexible welding jobs.
  • Beginner-Friendly Synergic MIG Control:The synergic MIG system helps automatically match voltage and wire feeding speed based on selected settings, reducing setup guesswork for beginners. Experienced users can also fine-tune settings manually for more control over weld bead, penetration and spatter.
  • 110V/220V Dual Voltage for More Workspaces:Use 110V for common home outlets and lighter jobs, or connect to 220V for stronger output and thicker material welding. The dual-voltage design makes this welder suitable for home garages, farms, small shops and mobile repair tasks.
  • Stable Arc, Low Spatter & Clean Welds:IGBT inverter technology helps deliver a stable arc, smooth wire feeding, deep penetration and lower spatter on mild steel, carbon steel and stainless steel. Ideal for auto repair, metal brackets, fences, gates, farm tools and general maintenance projects.
  • Large Display, Safety Protection & Full Starter Kit:The large digital display clearly shows welding parameters for easier adjustment. Built-in over-current, overload, over-voltage and overheating protection help support safer operation. Package includes welder, MIG torch, ground clamp, electrode holder, 120V/240V adapter cable, 0.8mm wire, shoulder strap, wire feed wheels and user manual. Lift TIG torch is not included.

Description

5-IN-1 MULTI-PROCESS WELDER The MIG-200 supports Gas MIG, Flux Core MIG, Spool Gun Aluminum MIG, Lift TIG, and Stick welding—built to handle a wide range of welding tasks. (Lift TIG torch and spool gun required, sold separately.) 200A OUTPUT & 110V/220V DUAL VOLTAGE Delivers up to 200 Amps with dual-voltage input for reliable, stable performance. Ideal for automotive, construction, fabrication, repair work, and DIY projects. WELDS THIN TO THICK MATERIALS Designed for versatile welding applications on different thicknesses and common metals including steel, aluminum, and stainless steel. SYNERGIC + MANUAL MIG CONTROL Wire feeding speed is fully adjustable (58–858 in/min). In Synergic MIG mode, voltage automatically matches a recommended setting as you change wire speed, with fine tuning available from -3V to +3V—great for beginners. Manual mode allows experienced users to customize wire speed and voltage for precise results. DIGITAL DISPLAY & REAL-TIME MONITORING Clear digital display provides an upgraded user interface and improved operating efficiency. Monitor real-time welding current for better control and consistency. SAFETY PROTECTIONS BUILT IN Engineered with comprehensive safeguards, including automatic voltage fluctuation compensation and protections against over-current, overload, and overheating—helping enhance user safety and extend machine lifespan.

Manufacturer: ‎win-win


Part Number: ‎S7


Item Weight: ‎21.3 pounds


Product Dimensions: ‎16 x 12 x 11 inches


Item model number: ‎MIG-200


Color: ‎Blue


Style: ‎MIG Welder


Material: ‎Metal


Power Source: ‎ac_dc


Voltage: ‎110 volts, 220 volts


Wattage: ‎100 Milliwatts


Item Package Quantity: ‎1


Warranty Description: ‎1 Year Manufacturer


Date First Available: May 27, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • It really is a best buy for the dollar.
I have used it with the flux core weld, and it works like a champ. Very happy with this machine. At first was worried because it's not a miller or yesweld brand, but this thing does just fine. Easy to run wire. Easy to hook up. It does come with instructions for every bit of info you might need. The whips are nice to. I am very pleased. ... show more
Reviewed in the United States on November 9, 2025 by Wesley moody
    • Great welds
Really good smooth welds good quality one bad thing is the motherboard is exposed great for like small little jobs. I won’t have to worry about cleaning it for the wires on the motherboard if you’re doing practicing, but if you’re doing like jobs for 50 hours or so or more, you would have to clean the wiring to not get it damaged by the motherboard or the wire is connected, but really good weld so far really good quality worlds. You will have to get a gas tank specifically meant which will work for argon and CO2 gas you will only need the gas if you’re doing FCAWG if you’re doing FCAWS you will not need the gas. ... show more
Reviewed in the United States on November 16, 2025 by Isla
    • Great value for DIY home use
Works well. Great value for 4-in-1. As others mentioned, the instructions included were very limited but the support from seller was very good. I had a few questions and they got right back to me. Easy to set up and use. My only issue aside from the lack of instructions was that the door does not latch. This is a design error. I was able to bend part of the housing so it made contact with the latch to stay shut. Overall, it’s a decent light duty welder for occasional DIY use. This is my first welder. I used it to reattach some of the expanded metal on my utility trailer. I used stick first and then gasless MIG which I had never done before. With the help of some YouTube videos, it was easy to do and the welds are strong using the included flux core wire. I used 110V. ... show more
Reviewed in the United States on June 26, 2025 by Michael
    • For $99 you'll find out if you can weld or not.
I'm not a welder. The Gas Mig made it easy to do some body work. I've never done that before either. You might get better performance from a $700 welder, but I couldn't tell because I've never owned one. For $99 you'll find out if you can weld or not. This welder works.
Reviewed in the United States on December 15, 2025 by Chumly
    • Great light weight welder with Great Little Price.
Great welder machine, compact and very handy you can't beat for the price I love it! The wire feed works great. I recommend this S7 200A 120/220 volt welder.
Reviewed in the United States on July 11, 2025 by Stingray
    • Great little MIG welder!
I'm a home fixit guy, not a welder. I can stick two pieces together with a stinger--it won't be pretty but it won't come apart either. I love the MIG over stick welding because you're close to the work and can manage the arc better. This device has worked great on both 110 and 220vac using flux-cored wire--haven't needed to get gas and the paraphernalia that goes with it. Compact and comes with everything you need except competent instructions. That having been said, a little practice goes a long way in figuring things out and I've been able to accomplish multiple repairs with much prettier result than with a stinger. Get the Harbor Freight welding cart to go with it and you're set! ... show more
Reviewed in the United States on June 17, 2024 by Silverseal99
    • Great little Welder
Works better than we thought. Buy it. It’s worth it
Reviewed in the United States on February 9, 2026 by Sunnyiowa
    • Doesn't stand up to its capability
It says 200 amp but struggles to burn 035 wire. The speed control doesn't have much range. On stick it does the same struggles tp burn 1/8 inch rod. But it does burn 3/32 reasonably on200 never used the tig setting so I can't comment. I don't know if I just got a lemon welder or the all have this issue. It seelike a decent built machine but lacks the ability they claim. I tried to get hold of the seller but was unable to find them. Goid luck with yours ... show more
Reviewed in the United States on November 21, 2025 by Paul Sgotto

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