1Wide selection of welding power supply, lithium battery power supply or 12V car battery.(Battery Not Included) 2The controller is controlled by a single chip microcomputer, and the output pulse is accurate to ensure the welding quality. 3The controller is mainly for welding nickelplated steel strips from 0.1mm to 0.15mm. With LCD display screen, can display welding parameters. 4The welding pen and the input line are connected by Ushaped coldpressed terminals, which is convenient for disassembly and replacement. 5Using automatic touch welding mode, while retaining the manual trigger interface, you can choose according to your own use. 6The power board uses 2 Gusi copper to increase the overcurrent capacity. Using 5 300A MOS tubes, nondisassembled MOS tubes. 7The MOS tube driver adopts the imported special chip driver. The fastest MOS tube can be hit with 20nS. The switch is fast to prevent the explosion of the tube and the nontriode pushpull drive. 8The MOS drive design adds a transient diode to protect the MOS and prevent the explosion of the tube. 910AWG multifilament flexible wire is used for the welding pen line and the input line to increase the overcurrent capacity. 10A 25V 10000uF highfrequency lowresistance capacitor is added to the power input for energy compensation, which increases welding stability.