The light intensive and gently curved band of single LEDs runs elegantly under the low beam module and ranges to the reflector of the turn indicator. The combined solution of DRL and position light is realized with 14 Advanced Power TOPLEDs placed on a flexboard. The required light intensity is controlled by an integrated LED control unit. The result is a punctual light source with an unmistakable contour similar to the appearance of a pearl necklet.
Energy consumption of dedicated daytime running lamps is significantly lower than driving with low beam. The Advanced Power TOPLEDs convince by their considerably higher lifetime and lower energy consumption. The LED DRL consumes 18W whereas while driving with low beam on, all combined light sources require about 250W.
Customers of Audi A4 can choose from three high-valued headlamp types:
In the base line, a powerful Halogen headlamp with two separated reflectors for low and high beam. Customers setting value to a wider illumination of the road and the verge similar to daylight decide for Bi-Xenon headlamps. Those that additionally want a better illumination in curves choose the top line with dynamic curve light. Thereby, for the first time in a European limousine, the combined low and high beam is generated by a mercury-free D3S lamp; the latest bulb technology integrated into this headlamp.