Description: 【Package Including】: Spot welding DIY set, including 1 battery (3.7V-4.2V 8000mA), 1 PCB circuit board, 2 brazing pens and 10AWG wires, 1 buzzer, 2 screws, 2 insulating heat shrink tubes, 1 USB charging cable, and 1 80cm 0.1x7mm nickel sheet. 【Durable Material】: The spot welder set adopts premium PCB circuit board and copper welding machine pen, 10AWG wires, ensuring the capacity of excessive current and durability, greatly improving spot welding efficiency. 【High Performance】: Spot welder DIY set, discharge rate up to 70C, output capacity approximately 300A. With a charging control module that charges via USB port and charges the solder points on commonly used 0.1mm-0.15mm thickness nickel plated plates. 【Adjustable Design】: The spot welding machine has 5 gear adjustments in total, and has sound and light indicators. And there are 2 spot welding modes to choose: timing output mode and trigger mode. 【Portable Size】: Unassembled spot welding machine PCB circuit board DIY set, suitable for DIY enthusiasts and beginners, small and lightweight size, easy to carry. Specification: Product Size: Soldering pen: length 10cm/3.94inch 10AWG wire: length 26cm/10.24inch Material: metal Package Includes: 1 Set Spot Welding DIY Set Note: Please allow slightly errors due to manual measurement and different monitors.