Features: brand new and high quality This is a high-quality fine spot welding machine with 100-speed adjustable power, which is easy to adjust according to the welding effect. 10-15V wide input voltage design, 100-300a suitable working current, support welding 0.1-0.15mm nickel sheet. With digital tube real-time gear display function. The 100-speed power adjustable design makes the welding process more accurate and the welding effect more perfect. It is composed of multiple strands of high temperature wire, which has good torsion resistance and more sensitive operation. Specifications: Material: PCB + Metal Working current: 100-300A Service voltage: 10-15V Size: Approx. 80x44 mm/3.15x1.73 inches Packing weight: 180g Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Soldered Circuit Board 2x Heat Shrinkable Tubing 2x Input Cables 2x Soldering Pens 4x Screws 1x 5m Nickel Sheet