High-Frequency Arc & Smooth Stability: Featuring advanced high-frequency arc ignition and inverter pulse technology, the PONEY PROTIG-200i delivers ultra-stable, spatter-free welding arcs. Its optimized waveform ensures smooth transitions for precise control on steel, stainless steel, and chrome-moly surfaces. Multi-Protection Safety System: Equipped with Hot Start, VRD, Short-Circuit Protection, and Thermal Overload Protection, this welder automatically safeguards against voltage spikes, overheating, and operational errors for worry-free performance. Precision MCU Control: An exclusive MCU chip boosts arc-start success rates to 99.99% with 400% faster response. Adaptive algorithms maintain stable current output across cable lengths and material thicknesses, minimizing electrode sticking and ensuring clean seams. 5-in-1 Versatile WeldinRugged Industrial Design: Tested for durability with a custom airflow system to block metal dust ingress. Features a large LED display for helmet-friendly readability g: Master COLD TIG, 4T/2T DC TIG, COLD SPOT TIG, and STICK modes in one compact unit. Rugged Industrial Design: Tested for durability with a custom airflow system to block metal dust ingress. Features a large LED display for helmet-friendly readability TIG Welder AC/DC withPONEY TIG Welder 200 Amp 5 In 1 TIG Welding Machine DC TIG/Spot TIG/Pulse TIG/Stick, 110V/220V Dual Voltage with Large Digital Display Pulse, 200A Professional Aluminum Welding