Features 1.SCOPE OF APPLICATION: Spot welder PCB circuit board is portable, stable and reliable. 18650 26650 32650 lithium batteries (not included) can be welded. 2.WELDING CURRENT 90A?150A: Spot welder circuit board welding current is about 90A?150A, can easily weld the common 0.1?0.12mm / 0.004?0.005in nickel plated thin plate. 3.AUTOMATIC TRIGGER WELDING: After several generations of product updates, it is now upgraded to automatic trigger welding, freeing the fingers of the button. 4.FIXED MORE FIRMLY: 12V 90?150A spot welder circuit board uses screws to fix more firmly, so you don't have to worry about parts falling off. 5.COMPLETE TOOLS: Spot welder PCB circuit board DIY kit tools are complete, you can operate yourself, suitable for DIY enthusiasts. specificationItem Type: Spot Welder PCB Circuit Board DIY Kit Material: PCB, Metal, Rubber Function: Dot Welding DIY System Voltage: 12V-14.6V Working Current: 90-150A PackageList 1 x Spot Welder Main Board 1 x Heat Shrink Tube 1 x Capacitor Heat Shrink Tube 2 x Copper Wire Ears 2 x Spot Welding Pen 4 x Screw Cap 1 x Nickel Sheet