Incandescent lamp can be up to how much temperature
Warm to the incandescent and thus issued a light, so named "incandescent" lights
When the temperature of the tungsten wire is over 2600 degrees, the tungsten wire heats at high temperature
Tungsten is the highest melting point of metal, 3400 degrees, tungsten wire installed in a vacuum glass tube
Incandescent lamp is one of the earliest lighting fixtures, filament made of tungsten
