Quality Material The solder wire is made of high-quality electrolytic tin, free of impurities, making it safe and reliable for long-term use. It produces minimal resin splash during soldering. High Performance Composed of 63% tin (Sn) and 37% lead (Pb), this solder wire offers excellent performance. It helps increase soldering speed while reducing the thermal impact on components, resulting in significantly reduced soldering time. Low Melting Point This solder wire has a low melting point between 183°C and 245°C. It is versatile, low-corrosive, and provides a bright, clean solder joint while preserving electronic components. Four Spools of Solder Wire This set includes four 1mm diameter spools weighing 20g, 30g, 50g, and 100g to meet various soldering requirements. The spools are designed for durability and long-term storage. Versatile Applications The solder wire with built-in flux is ideal for general soldering tasks. It is well suited for electrical DIY projects, repairing wires and cables, and maintaining electronic equipment such as air conditioning systems.