Feature:[High Carrying Capacity] This high current spot welding pen has a built-in imported MOS tube, which can carry 550A current and has a powerful welding capacity. It adopts integrated design, you connect the handheld spot welder to the battery and you can use it. The simple and easy to use operation method makes your welding work faster and more efficient.[Removable Copper Pin] This handheld spot welder is designed with removable copper pin, the expandability and maintainability of the welder is improved.[99-Speed Adjustment] This battery spot welding machine has 99-speed infinite adjustment, which makes it more convenient to operate. With this design, it can meet your different welding needs. Precise welding ability, help you easily cope with a variety of welding work. 5.[Trigger Button] This point welding machine has a trigger button, just press this button to complete a welding, very suitable for one-hand operation.[LED Indicator] This spot welder has a built-in LED indicator, which can keep you informed of its working status. You will operate with more peace of mind and can also grasp the current and other details in real time, making your welding safer and more reliable. It is compatible with 18650 batteries and 21700 battery packs. It is versatile, lightweight and portable and can be used in various fields such as electrician, metal welding and construction.Specification:Certification: NONEOrigin: Mainland ChinaModel Number: Spot Welding MachineMax. Welding Thickness: 0.1mmDimensions: 170 x 25mmWeight: 150 gUsage: for spot weldingWire length: 350mmWire specification: 12AWG silicone wirePower interface: Copper lug /EC5(optional)Operating voltage: 12V-16.8VSpot welding current: 80A-150APower module: Imported 550A MOS tubeCase material: high temperature resistant nylonSpot welding material: 0.1mm nickel-plated tapeWelding needle specification: 3 x 1.5 x 40mm professional alumina copper welding needleWhether the copper needle can be replaced: YesMaterial: ABS+ metal