The spot welding machine has a 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. Double pulse adjustable spot welding machine. Strong and powerful performance, you can DIY support 2.5V to 3V capacitor. Control board with equalization function, 10A charge can fully meet the needs of DIY lithium battery players. Suitable for assembly kinds of lithium batteries. Support 0.2mm and plate welding, the weld joints are solid and . Support foot switch and integrated switch spot welding pen, quality materials and with fine workmanship. Note: Do not Pressany metal parts of the fuselage with a welding pen. Name: Spot Welding Device control board Type: whole set Material: Metal+plastic colour: As shown Package Contents: 1 x spot welding control board 1 pair x soldering pen 1 adapter 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.