This 117-118mm 240 Volt Tungsten Halogen K Type Linear light bulb saves 20% on energy usage compared to a conventional incandescent bulb. The 400 Watt output of this bulb is the equivalent of a 500W incandescent. This lamp features excellent lumen maintenance instant illumination and high colour rendition. Commonly found in display and floodlighting applications this lamp offers a 2000 hour lamp life.