Tungsten is a chemical element, a hard rare metal, vanadium tungsten deriving from the Swedish language 'tung sten' directly translatable as meaning a heavy stone.
Because of the unusually high melting point of this metal, it is used in alloy form for the creation of incandescent lightbulb filaments, as such and due to its popularity the majority of incandescent lightbulbs are referred to in lighting has tungsten, or tungsten lighting. Tungsten lighting due to the chemical properties of the metal filaments appears as a slightly reddish or orange hue to cameras which have not been colour balanced