Product: enameled wire (insulated copper wire) with a pure copper inner core and an outer surface coated with insulating paint and polyester patent leather; packed as 1 x enameled wire (500 g / 17.6 oz) Key benefits Direct welding capability: can be welded directly without removal of coating frequency compatibility: resistant to frequency applications Portable and easy to transport: compact packaging and light weight for convenient use Construction and materials Inner core: pure copper Outer coating: insulating paint with polyester patent leather Designed for durability and reliable insulation in electrical work Specifications Voltage withstand: 3000 V to 5000 V Temperature resistance: 130 to 180 degrees Celsius Color classification shown by the system refers to the wire diameter (specification) Copper wire adheres to national standard specification Specification refers to the diameter of the drawn copper wire, i.e., the inner diameter without the paint film Size and packaging Packing: 1 x enameled wire (500 g / 17.6 oz) Use scenarios Winding coils for transformers, inductors, or motors DIY electronics, prototyping, and small electrical projects Electrical repairs or rewinding tasks where enamelled copper wire is required