Small size and high power, the spot welder is easy to carry and efficient. The soldering tips can be removed and replaced, and the solder joints are beautiful and firm. Thousands of solder joints can be spot welded when fully charged. Adjustable current makes the spot welder convenient to use, and the operation is simple and easy to learn. Made of high-quality plastic and metal material, it is odorless, wear-resistant and durable. This spot welder is 15cm long, 9.7cm wide and 5.1cm high. The spot welding machine is used for spot welding nickel strips on 18650 batteries, or spot welding iron sheets and stainless steel sheets. Item Name: Spot Welder Material: ABS, Metal Output Voltage: 4.2V (MAX) Output Current: 639A (MAX) Battery Capacity: 4300mAh Power Consumption: 5000W Plug Type: US Plug Size Details: Size: 15cm x 9.7cm x 5.1cm/5.91 \" x 3.82 \" x 2.01 \" (Approx.) Soldering Pen Length: 30cm/11.81 \" (Approx.) Cord Length: 100cm/39.37 \" (Approx.) Pedal Cord Length: 130cm/51.18 \" (Approx.) Spot Welding Thickness: 0.1-0.15-0.2-0.25mm Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Plug 1 X Spot Welder Machine 1 Pair of Soldering Pens 1 X Foot Pedal 1 X Nickel Belt 1 X Sandpaper (Spot welder, soldering pen and foot pedal are interconnected)