Product Name:12V Portable Spot Welding Machine Circuit Board Gear:9 Gears Working Current:90-150A (Discharge Below 90A Will Not Work) Advantages:Portable, Stable, Reliable, And Welding Nickel Sheet Thickness:0.1-0.3mm Welding Current:1500amax Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Type:A:Without Case Colour:As Shown Material:PCB+Metal+Plastic Package Contents: 1 * Motherboard Module 2 * Welding Pen 2 * Input Cable 2 * Heat Shrink Tube 1 * Nickel Sheet 1 Set * Screw Mounting Accessories 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. Ultra-Thick Copper Tube, 12awg Wire, And Aluminum Oxide Copper Spot Welding Needles Excessive Current Capability And Durability, Greatly Improving Spot Welding Efficiency. 9-Level Power Adjustment, Digital Tube Real-Time Gear Display Intelligent Cnc Spot Welding Machine, 9 Precise Gear Adjustments, High-Speed Microcontroller, Intelligent Program, Real-Time Display Of Battery Voltage, And Spot Welding Intensity Can Be Seen It Is Both A Spot Welding Machine And A Voltmeter. It Has A Built-In 12-Bit High-Precision Adc And The Voltage Measurement Accuracy Can Reach 0.01. The Voltage Testable Range Is: 12-14.6V. It Automatically Displays The Voltage When Connected To The Power Supply. Bilateral Outlet Is Convenient For Spot Welding. The Product Is Marked And It Is Not Easy To Make Wrong Connections.