1. 1.8-inch large screen display: parameter functions are clear at a glance, and can also be flipped 180 degrees 2. Welding current display: used to judge battery performance and predict spot welding thickness 3. Customized widened and thickened copper flow guide plate: enhances flow and thermal conductivity, improves spot welding effect 4. Detachable soldering pin with standard 8mm banana female seat Working voltage: DC5.4V-15DC Recommended power supply: 12V battery, 3 series of power batteries (without protective board) 11.1V, 3 series of supercapacitors 2.7V/3V, 12V car . Nickel strip thickness: Supports 0.1-0.3mm nickel strip, Spot welding current: 5 low internal resistance MOS tubes, continuous current of 1500A, current of 5 x1200A. If the spot welding current exceeds 1500A during the welding process, please reduce the voltage or It is a voltage divider that is connected in series with a wire (such as a 1.5 square copper wire). The stronger the power discharge capability, the higher the voltage, and the lower the internal resistance, the greater the actual spot welding current. Foot switch interface: standard DC5.5-2.1 seat, the most commonly used interface, can be connected to a foot switch and an integrated handheld spot welding pen. External temperature interface: most commonly used -10K, B3950 thermistor, XH2.54-2P interface. Communication serial port: XH2.54-4P interface, TTL3.3V level output, with 5V power output, providing a maximum current of 500mA. Can be connected to a serial port screen or Bluetooth transparent transmission module. Tips: Due To Different Batches, There are some differences between the actual product and the picture, which not affect normal use Colour:Photo Color Material:plastic Package Contents: 1set x Spot welding machine Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.