The Blue Demon BlueArc 140MSI is a portable welder packed with features. It is capable of Stick (MMA), MIG (GMAW), and gasless MIG welding. The 140MSI runs off of a regular 110V outlet making it perfect for use in situations where 220V is not available or for people who do not have access to 220V. Standard 4 and 8 inch spools work perfectly in the 140MSI. Also, due to the synergic controls, adjusting the wire feed speed/volts will automatically change the amperage to ensure you get optimal settings every time. The controls are able to be fine-tuned to +/- 2 volts. A 6-foot electrode holder and ground clamp are also included with every machine.