The welding is and the pipe does not explode. It supports nickel strip or steel strip with a thickness of 0.1-0.15mm. The upgraded intelligent digital display version is stable, , convenient and durable. MOS tube*5, the spot welding current can reach 2600A. The digital tube shows the real-time gear position. There are 100 gears of power and 9 gears of delay can be adjusted according to the welding effect. Two-sided outgoing wires are convenient for spot welding, and the products are marked, so it is not easy to make mistakes. Product Name: Spot Welding Machine Supply voltage: 10-15V Working current: 100-300A Features: spot welding machine control board Material: pcb colour: green Package Contents: 1 x Control Panel 1 x Nickel Sheet 2 x Spot Welding Pen 2 x Connection Cable 2 x Heat Shrinkable Sleeve 4 x Screw 4 x Nuts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.