Thermal Arc's line of inverters are geared for portable stick, TIG and multiprocess welding applications. Nine models range from 19 to 63 pounds and feature a voltage reduction device that reduces OCV when the power supply is not in use, eliminating the risk of accidental electric shock. A push-button, weather-protected control panel with digital meter is standard on all models. Easy-to-follow graphics lead operators through the controls to make accurate selections. Units can be stacked. Welders have a 3-year warranty.