Infographic on the M3/M4 and 4 Series LED headlights

Here is general infographic on LED lights from the company that is making the F8Xs LEDs, Al Lighting, as well as model-specific info for the 4-Series. Everything you’ve always wanted to know about LED headlights!

LED in headlamps

In rear lamps, applications with red and yellow LEDs already are state of the art in lighting technology. In headlamps, especially white LEDs are necessary that for main functions must provide a better light performance. White LEDs have already been used for signal functions like position or daytime running light in some serial projects. With the development of the first Full-LED headlamp for Audi R8, Automotive Lighting set up a world premiere. For the first time, all light functions of a serial headlamp are being realized in LED technology, these are low and high beam, daytime running light, turn indicator and position light.

LED technology offers new opportunities for the future concerning styling, technology and energy consumption.

Advantages of LEDs

LEDs especially stand out for the following characteristics:

– the light temperature of the LEDs nearly achieve daylight quality
– an extremely high lifetime lasting more than a whole vehicle life
– a significantly lower energy consumption
– more effective opportunities for the use of installation space in headlamps
– unique freedom and variety in styling for the development of brand characteristic styling elements within headlamps

Function of LEDs

LEDs are based on semiconductor technology. The light is emitted directly out of the semiconductor substrate when a forward voltage is applied. The colour depends on the band-gap energy of valence and conduction band for the materials forming the semiconductor. The amber colour is directly generated by the LED by Aluminium Indium Gallium Phosphide (AlInGaP) semiconductor material. Through the luminescence conversion process, white light is generated. A blue diode in combination with an applied converter material, the colour blue and yellow, the combination of which is perceived as white light.

Source: Al Lighting