Feature:1. HIGH TEMPERATURE RESISTANCE: This spot welder has high frequency capacitors, low internal resistance, and can withstand high temperatures of 1052. IMPROVE EFFICIENCY: Brass electric welding machine conducts electricity and heat, improves spot welding efficiency, and can be used for a long time3. HIGH DURABILITY: 10AWG wire, aluminum oxide copper pin solder joints ensure high current throughput and durability4. EASY TO USE: The welding machine adopts positive and negative markings, not easy to connect wrong wires, portable, stable, reliable5. GEAR DISPLAY: With 8 gear power adjustment, the digital tube displays the gear in real time, suitable for electronic enthusiastsSpecification:Item Type: Welding Machine Circuit BoardMain Color: GreenMain Material: PCB.Package List:1 x Circuit Board1 x 5m Nickel Sheet2 x Connecting Cables2 x Spot Welding Pens4 x Screw Set2 x Heat Shrink Tubing1 x Acrylic Case (Includes Mounting Accessories x 16)Note:Requires a certain amount of hands on ability