1、20 LEVELS ADJUSTABLE: This is a good quality fine spot welder with 20 levels of power adjustable, which is easy to adjust according to the welding effect 2、TORSION RESISTANT WELDING PEN: The MOS tube is selected to output through 5 MOS tubes, the maximum welding current is 2600A, and the 350mm welding pen is composed of multi strand high temperature wires, which has good torsion resistance and more sensitive operation 3、REAL TIME DISPLAY: 7-14V wide input voltage design, 100-300A applicable working current, support welding 0.1-0.15mm nickel sheet. With digital tube real time level display function 4、GOOD ELECTRICAL CONDUCTIVITY SOLDER PIN: 2mm solder pin with good electrical conductivity and low contact resistance, fast debonding 5、LOW INTERNAL RESISTANCE: The cold pressing process contacts the copper joints in a large area to reduce the internal resistance 6、COMPLETE ACCESSORIES: Complete set of accessories, with non slip flange nuts and screws to increase the flow area