Product: enameled wire (also known as insulated copper wire). Construction: inner pure copper core, surface enamel insulation, outer polyester patent leather layer. Packing: 1 piece x enameled wire (500 g / 17.6 oz). Key benefits It has the capability of direct welding. The enamel insulation enables direct welding in many applications, simplifying assembly. It has voltage and temperature tolerance. Rated for 3000 5000 V and 130 180 C, it is suitable for electrical and temperature environments. It has frequency resistance and portability. Engineered for stable performance at frequencies and is easy to carry. Specifications and construction Type: enameled copper wire with enamel insulation and an outer polyester patent leather layer. Core material: pure copper. Insulation and finish: enamel insulation on the copper core, with a polyester patent leather outer layer. Packing: 1 piece x enameled wire (500 g / 17.6 oz). Voltage class: 3000 V to 5000 V. Temperature rating: 130 to 180 degrees Celsius. Weldability: can be directly welded. Performance: designed for frequency resistance. Portability: lightweight and easy to carry. Color and gauge information Color classification shown in the system refers to the wire diameter (specification). The copper wire follows national standard specifications. Gauge refers to the diameter of the bent copper wire, i.e., the inner diameter without paint film. Use scenarios For transformer, inductor, or motor windings in consumer electronics and small appliances. For DIY electronics projects and RF circuits that require insulated copper wire with reliable voltage and temperature performance. For prototyping and lab experiments which benefit from direct welding compatibility and compact, portable material. Notes This package contains a single enameled wire strand weighing 500 g (17.6 oz). The color options correlate with wire diameter according to system specifications; copper wire adheres to national standard specifications. Gauge descriptions refer to the inner diameter of the bent copper wire, measured without the enamel/paint layer.