Portable and elegant design with a safety switch for secure operation. The pocketsized welding tool is easy to carry and ready for onthego use. Energy and power approach: uses lighters as the energy source, with no voltage restrictions and no limitation from traditional soldering iron wires. This provides true portability without a fixed power supply. Versatile welding and tool: designed for precise welding of electronics, instruments, circuits, and other items on computer motherboards. It supports a wide range of functions and delivers noticeable results. Automatic ignition: builtin automatic ignition eliminates the need to manually light a lighter, simplifying operation and improving convenience. Interchangeable connectors: by swapping different connectors, the device can be converted to perform multiple functions such as soldering and acting as a soldering iron, among other capabilities. Use scenarios Electronics and PCB work: ideal for precise welding on electronics, circuits, and computer motherboards where space is tight and accuracy is critical. Field maintenance and onsite fixes: convenient for repairs in locations without readily available power sources, thanks to its lighterbased energy system and portable form factor. Quick prototyping and modifications: suitable for rapid soldering tasks and smallscale circuit modifications during DIY projects or small jobs.