This inverter MIG welder is both MIG, and a self-shielded flux-cored welding machine. The MIG155GSV is equipped with a unique electronic reactor circuit, which can precisely control the short-circuiting transfer and mixed transfer resulting in better performance than other welders for sale. You will see the many advantages when you compare our products with silicon controlled welding machines and tapped welding. We have a stable wire feed rate; it’s portable, energy-saving, and electromagnetic noise-free. Besides, we stand by our products. They spatter less, have easier arc starting, a deep welding pool, and a high duty cycle that you will appreciate. Compact – portable – very capable quality welder that can run on either 110/115 or 220/230 volts which makes this a true workhorse with a completely portable footprint.