It is a crucial material in lighting fixtures. Taking incandescent lamps as an example, the main body of an incandescent lamp is a light bulb, which contains a tungsten filament. When an electric current passes through the tungsten wire, it is heated to a high temperature, emitting a bright light. In addition, tungsten wire is also used to manufacture parts such as backplates and radiators for LED lights, as well as electrodes and thermal resistors in various special lighting fixtures.

Tungsten wire with the addition of rare earth elements is widely used in magnetic control fields such as microwave ovens due to its electron emission performance.