Features: 18650 Lithium Battery Spot Welder 99 Gear Digital Display Control Board Complete Set; Control board for spot welder, which allows for more accurate temperature control. Spot welder control board has real-time gear display function of digital tube, which can control temperature and more accurately. Spot welder kits can be used to spot weld lithium batteries such as 14650 17490 21700 26650 32650; 5 MOS tubes, with a total top current of about 1700a; Specifications: Material:Metal+Plastic Size:Approx.9x6cm/3.54x2.36in Suitable for 14650 17490 21700 26650 32650 Lithium Battery; Package Includes: 1x Spot Welding Control Board 2x Battery Input Lines 12x Screws 2x Spot Welding Pen 1x Nickel Sheet 8x Copper Posts 1x Manual note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.