This is a kind of quality spot welding machine, 5000W high power, the current is adjustable, and the welding spots are precise and beautiful. Welding points are precise and beautiful, support 0.1-0.25mm nickel sheet welding. Uses foot switch control, don't need manual operation, free your hands. Comes with a 0.15mm nickel-plated steel belt roller and 1 pcs of sandpaper to polish the welding pen. You can have a try. Features: Lightweight and portable, stable and reliable, wear-resistant, and can provide a long service time.< br/> 5000W high power, and the welding points are precise and beautiful. 9 adjustable output power gears (0-800A), welding more precise. The welding points are precise and beautiful , support 0.1-0.25mm nickel sheet welding.Built-in high-speed polymer power cell, support thousands of points continuous welding after being completely recharged. Uses foot switch control, needn't manual operation, free your hands. Gold-plated terminal soldering pen, with fine conductivity and low contact resistance, and easy to carry. The welding needle can be disassembled and easily changed. Multiple strands of high temperature wire, 16 m with a fine torsion resistance capability. Comes with a 0.15mm nickel plated steel belt roll and 1 pcs of sandpaper to polish the welding pen. Features: Name: Spot Welding Machine Material: Plastics + Metal Battery: 1*7.4V, 3500mAh lithium battery (included) Item Size: 162*96*58mm/6.38*3.78*2.28in Item Weight: 716?g / 1.58?lb Package size: 195 * 135 * 105 mm / 7.68 * 5.31 * 4.13 inch Package weight: 850g/1.87lb < strong>Packing List: 1 * Spot Welding Machine 1 * Adapter 1 * Nickel Foil Roll