1 LED offers many advantages for automotive lighting applications
LEDs are widely used in automobiles and can be easily classified into internal lighting and external lighting (see Figure 1). Exterior lighting includes headlights, taillights, etc. Interior lighting includes interior convenience and comfort lighting and dashboard backlighting.
Figure 1 A variety of automotive LED lighting applications
There are many factors driving automotive LED lighting applications. For example, in the case of a previous lamp, the use of LED as a light source has many advantages. Therefore, the application of LED in automotive lighting is increasing, and it is regarded as a design selling point by many automobile manufacturers.
Conducive to flexible or innovative design
The physical size of the LEDs is small and can be used to develop extremely compact, extremely thin modules. Multi-string LED modules require smaller, simpler lens and light diffuser hardware than halogen and xenon lamps. And the light of multiple LED light sources is easier to guide, greatly reducing the impact of engineering design on the shape.
Light intensity and energy efficiency continue to increase
The LED light intensity is on an extremely fast rise curve, showing a trend that the luminous flux will double every (18~24) months. The LED light output has exceeded the halogen lamp, and the actual LED performance of the LED will be comparable to that of the Xenon lamp.
High reliability and long life
As long as the LED headlamp module is effectively thermally managed to maintain a low junction temperature and protect it from switching on/off, current spikes and battery pulses that may occur during dimming, it is expected that they will be throughout the vehicle. It is not unrealistic to continue to use it during the life cycle.
Significant energy saving
LED headlamps use much less fuel/energy than other solutions. Energy-efficient devices that use energy-efficient smart power technology/chips without the need for multiple external components can be more energy efficient.
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