High Quality and Durable: The 8000W high-power spot welder has good performance and a long service life. ABS shell material, surface anodizing technology, wear-resistant and safe to use. The welding needles equipped with the spot welding machine have good conductivity and low contact resistance. Knob Adjustable Spot Welder: The adjustable spot welder can continuously weld thousands of spots on the nickel sheet once fully charged. The welding feet of the adjustable spot welder can be removed and replaced. Power adjustment design: The output power can be adjusted from 0 to 800A by rotating the knob. The higher the value, the higher the performance. Easy to use: The welding feet of the spot welder can be removed and replaced, making it easier to use. The DIY cordless spot welder uses a foot pedal to control the welding, making spot welding easier. Simply press the nickel strip with two soldering pins and press the foot switch. Wait about 0.5 seconds for the spot welding to output, and