<p>Welding power can be powered by lithium battery or 12V car battery. Soldering pen and input wire are connected by U-shaped cold-pressed terminals, which is convenient for disassembly and replacement.The controller adopts single-chip microcomputer control, accurate output pulse, LCD display, can display welding parameters.The power board uses 2 ounces of copper, and the wire of the soldering pen and the input wire use 10AWG multi-core soft wire to increase the overcurrent capability.The controller adopts automatic welding mode, while maintaining the manual trigger interface, you can choose according to your own use.</p>Note: The data are all manual measurement, please allow 1-16cm error, due to the light and display difference, there will be some difference in color, according to the physical object I received.