LEDs may be all the rage in automotive accent lighting, having effectively supplanted HIDs as "the latest thing" in automotive illumination technology. While LED lighting has become relatively common in driving lights, taillights, and even interior lighting, it has yet to go mass-market on a large scale as the primary headlight light source. It is about to go prime time with the 2015 Ford F-150. In addition to its game-changing aluminum body, the truck will offer optional full LED headlights on higher-level trims.
LED lighting may be considered a fashion item for many premium and luxury models, but the technology has a very practical application and some compelling durability and longevity attributes compared with conventional halogen lighting. The LED headlights for the 2015 F-150 are expected to last five times as long as conventional halogen lights, and in most cases, is expected to last the life of the vehicle. LEDs are also much less susceptible to vibration than conventional filaments, and cast a brighter, more consistent light than halogen bulbs. LEDs are also simpler and more compact than HIDs.
The lenses on the 2015 F-150 are precision machined with 16 optical surfaces and 80 facets, allowing use of just a single LED per lamp for illumination.