Powerful Pulse Argon Arc Welding Machine Spot Contact Welding Safe & Stable Internal Parameters Input Voltage: AC 110V, 60Hz Welding Voltage: 40V Input Power: 300W Welding Current: 50-600A Fuse Tube: 250V/10A Welding Time: 3ms-30ms Protection Level: IP21 Gas Supply Pressure: ≥ 0.1MPa Max. Argon Consumption: 5L/1.32Gal/min External parameters Material: Aluminum, Pure Copper, Tungsten Alloy, etc. Surface Treatment: Baking Paint Power Cord Length: 1.5m/4.9ft Welding Pen Cable Length: 1m/3.28ft Argon Gas Pipe Length: 2m/6.56ft Host Size: 15.5*28*24cm/6.1*11*9.4inch Package Includes 1x Pulse Argon Arc Welding Machine 1x Welding Loop Clamp 1x Workbench 1x Welding Pen 1x Pressure Gauge 1x Negative Wire 1x Argon Gas Pipe 5x Tungsten Needles 1x Needle Grinder 2x Fuse Tubes 1x Power Cord 1x USB Cable 1x Allen Key 1x English Manual Notes： 1.Please beware of electrical safety hazards. Users must hold special operation qualifications. 2.During the welding process, the tungsten needle turns black. Please polish it before welding. 3.Please read the operating manual completely before use. And pay particular attention to the safety instructions included. Notes： 1.Please beware of electrical safety hazards. Users must hold special operation qualifications. 2.During the welding process, the tungsten needle turns black. Please polish it before welding. 3.Please read the operating manual completely before use. And pay particular attention to the safety instructions included.