Features: Support 0.2mm and below nickel plate welding, the weld joints are solid and reliable. The spot welding machine has a compact square size of 100mm and is lightweight and portable. It can be used for 220 V household appliances. The output voltage of the spot welding machine is DC12V. Strong and powerful performance, you can DIY support 2.5V to 3V farad capacitor. Control board with equalization function, 10A charge can fully meet the needs of DIY lithium battery players. Specifications: Name: Spot Welding Device Type: Whole set withControl Board Material:ABS Color:Blue weight:1800g/ 3.96lb Size: approx 270x190 x150mm/10.6x7.5x5.9 inch Package Includes: 1 X Battery Welding Machine 1 X Power Adapter note: Do not for touch any metal parts of the fuselage with a welding pen. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Thank you. Due to the differences of camera equipment, light intensity and display screens, the color of the item may be slightly different from that shown in the pictures.