Description If you are looking for a professional spot welder control board, then your research is over here. That's because our product can meet your need. Adopted of solid material, practical and durable for long time use, not easy to get deformed and bring you much convenience. Features - Color: As Shown -Material:PCB, Electronics component - Size: 10.00X5.00X2.00cm/3.93X1.97X0.79in Current: 40A - Precise control of welding quality with digital display of time and current adjustment. - Made of PCB and electronic components for durability. High stability with single-chip microcontroller control. - This spot welder control board is suitable for DIY spot welding machines. - Provides a safe and reliable welding experience. Compact and lightweight design for easy portability. - Simple in design, but very practical in use, which brings great convenience to you. Package list: 1 x control board 1 x display board 1 x cable 2 x knobs 3 x gaskets 2 x nuts