12V DIY Automatic Spot Welder Machine Control Board for 18650 Battery Welding
Welding thickness: 6 square spot welding machine can point 0.05-0.2mm. High-power output design, adjustable output power from 0-99 gears, more accurate welding. Spot welding pen line: 6 square 25 cm or 10 square 30 cm (choose one of the two).