Features: ▲Single phase 220V±15%. ▲ Micro processing,powerful IGBT transistor.Multiple welding process for MMA TIG ift. ▲ Designed for portability and professional welding,comes with shoulder strap. ▲ Able to weld acid electrode rod and alkaline electrode rod. ▲ Automatic power off after 30 minutes in idle. ▲ Hot start and arc force function gives perfect ignition,anti-stick function decrease the chances that electrode sticks to base material.Protection against overload and overheat. Integrated VRD (Voltage Reduce Device) increases safety at work. ▲ Intelligent monitoring of the optimal operation conditions and protections of all the components with alarms. ▲ Proven reliability from top welding technology,guarantees superior welding performance and nice welding result. ▲ Wide usage for metal workshops,construction,repair and maintenance,DIY.