1、Welding power can be powered by lithium battery or 12V car battery. 2、The controller adopts single chip microcomputer control, accurate output pulse, LCD display screen, can display welding parameters. 3、The soldering pen and the input wire are connected by U‑shaped cold‑pressed terminals, which is convenient for disassembly and replacement. 4、The controller adopts automatic welding mode, while retaining the manual trigger interface, you can choose according to your own usage. 5、The power board uses 2 ounces of copper, and the soldering pen wire and the input wire use 10AWG multi‑wire soft wire to increase the overcurrent capacity. 6、Five 300A MOS tubes are driven by imported special chips, and the MOS tubes can be used as fast as 20nS, which can switch quickly to prevent tube explosion. 7、The controller is mainly for welding 0.1mm to 0.15mm nickel‑plated steel strip, and the power input adds a 25V10000uF high‑frequency low‑resistance capacitor for energy compensation to increase stability.