The "light emitting diode", or LED for short, has already made a name for itself as an alternative luminant for vehicle lighting applications. Lighting functionalities on the interior and on the rear of the vehicle in particular benefit from the advantages of LEDs such as reliability and compactness. Thanks to the rapid increase in power in LEDs, applications in headlamps can now also be represented. This paper focuses on the use of white high-power LEDs in headlamps. As well as explaining the structure of LEDs and how they work, their technical properties in comparison with conventional light sources will also be discussed. In addition, system requirements and LED frontlighting applications will be presented.