Features: This portable battery spots welders controller features copper heat conduction for significantly enhanced welding efficiency, making it ideal for DIYer spots welding projects with its smart digital display and high frequency capacitors that withstand 105°C temperatures. Equipped with 8 gear power adjustment, double sided outlets to prevent connection errors, and wear resistant components like thick red copper tubes, 10AWG wires, and aluminum copper welding needle for superior current flows and reliability in portable spots welders applications. Perfect for DIYer enthusiasts and mobile phone repair technicians who need easy to use tool for precise welding tasks on small electronics like battery packs. Designed for local welding scenarios mobile phone repair, such as fixing components on circuit board, this battery spots welders ensures efficient spots welding with minimal errors in confined spaces. Built with robust materials including high frequency capacitors for low internal impedance, this DIYer spots welders offer durability and performances for consistent welding results in various DIYer and repair settings. Specifications: Component: Circuit Board Size:Approx.90mm/3.54''x50mm/1.97'' Voltages:7-16V Current:100-300A Package Includes: 1Set Spots Welding Machine Control Board note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.