Portable Professional Handheld Intelligent Spot Welding DIY Mini Welding Machine

【ADVANCED WELDING TECHNOLOGY】 This handheld welding machine utilizes dual pulses to effectively clean oxide layers and consistent energy output, resulting in reliable and firm solder joints. 【 WELDING CAPABILITIES】 Capable of welding nickel, iron, and steel sheets with thicknesses ranging from 1mm to 0.25mm, making it perfect for various DIY projects. 【COST-EFFECTIVE DESIGN】 Features a replaceable spot pen head, allowing you to save on costs without needing to replace the entire pen for continued use. 【USB CHARGING FUNCTIONALITY】 Equipped with a USB 5V1A output to conveniently charge your mobile devices while you work on your projects. 【SMART TEMPERATURE CONTROL】 Automatically stops charging when temperatures exceed 60 degrees Celsius, safe operation during use.