1. Realtime voltage monitoring protection: The unit continuously monitors the input voltage and will alert if the voltage falls outside the 8 17 V range by displaying ue. This helps prevent undervoltage or overvoltage conditions that could affect weld quality or damage the equipment. 2. current capability: Equipped with 5 MOS transistors, the spot welding current can reach up to 1500 A, enabling strong welds for demanding applications such as battery tab connections and current metal welds. 3. Realtime MOS tube temperature protection: The system tracks MOS tube temperature in real time. If the MOS tube temperature exceeds 45 C, a display indication is shown to prompt precaution and protect components from overheating. 4. 99 adjustable power levels: There are 99 discrete power levels, with realtime display of the current gear level on the digital readout, allowing precise control and repeatability for different welding tasks. Use scenarios Battery tab welding and Liion pack assembly: Leverage the current capability up to 1500 A for solid welds, while realtime voltage monitoring ensures stable operation from varying power sources. Metal sheet spot welding in fabrication or : Use the temperature protection to prevent overheating during lengthy weld sequences, maintaining weld quality and component safety. R&D and prototyping work: The 99 adjustable power levels and realtime digital readout provide precise parameter control for experimenting with weld settings and achieving consistent results.