The Invertec V275-S has 275 amps of power, which allows users to weld with up to 7/32-inch stick electrodes. Designed for outdoor use, the unit has weather-resistant features. For thick, rusty or dirty materials, Hot Start offers the capability to use extra starting amperage. TIG welding arc can be established without high frequency starting. The V575-S is covered by a 3-year warranty on parts and labor.