Applications
Halogen headlamps are used in many automobiles. Halogen floodlights for outdoor lighting systems as well as for watercraft are also manufactured for commercial and recreational use. They are now also used in desktop lamps.
Tungsten-halogen lamps are frequently used as a near-infrared light source in Infrared spectroscopy.
Halogen lamps were used on the Times Square Ball from 1999 to 2006. However, from 2007 onwards, the halogen lamps were replaced with LED lights, both to reduce electrical costs, and due to the much longer potential lifespan (about ten times longer for LED over incandescent). The year numerals that light up when the ball reaches the bottom used halogen lighting for the last time for the 2009 ball drop. It was announced on the Times Square website that the year numerals for the 2010 ball drop would use LED lights.[19]
Automotive
A close-up of a tungsten filament of a halogen car lamp after several hundred hours of use
Main article: Automotive lamp types
Tungsten-halogen lamps have been commonly used as the light sources in automobile headlamps, but are increasing being replaced by Xenon and LED lights.
Architectural
Linear in various sizes and power
R7S: linear halogen lamp measuring 118mm or 78mm. Also known as a double ended halogen lamp.
Dichroic and plain reflector spots. Higher efficiency versions using infrared reflective coating (IRC) technology are 40% more efficient than standard low voltage halogen lamps