DIGITAL DC CC/CV MULTI-PROCESS INVERTER: Offers versatile welding capabilities for nearly every task with precision and reliability. 4.3 HD COLOR LCD SCREEN: Provides an intuitive setup and easy navigation for a seamless welding experience. VERSATILE WELDING MODES: Includes Short Circuit, Spray Arc, Synergic Single Pulse MIG, Flux-Cored, Pulsed TIG, and E6010 root pass welding. CUSTOMIZABLE SETTINGS: Features Adjustable MIG Wave Form control, Arc Force control, Burn Back control, and TIG Up/Downslope for fine-tuned performance. PORTABILITY AND DURABILITY: Supports 8" and 12" wire spools for long-duration welding; backed by a 5-year warranty for peace of mind. The Thunder 255 is a versatile work horse product designed for multiple processes. Whether you need the machine for MIG, DC TIG, or Stick welding, the unit can fit most any welding shop with welding needs as a fabrication or production welder. The legendary IGBT inverter powered technology that Everlast uses in this unit is digitally controlled with a microprocessor to deliver the most stable and controlled arc possible in a wide variety of circumstances. The Thunder 255 also gives the user a broad range of functions, features as well as a wide range of adjustment not found on other welders in this welder class. It is also additionally supported long term with Everlast's Platinum 5 year warranty and is further backed with a 3 year shipping coverage protection if warranty support is ever needed. With a built in wire feeder, the Thunder 255 functions well as both a standard MIG ( Short Arc and Spray) and a Pulsed Spray MIG ( Single Pulse) welder with function selections for both. In addition, this model also has selections for FCAW and FCAW-P ( Self-Shielded Flux Core and Gas Shielded Flux-Core) wires.