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The automotive lighting market is heating up: A reveal of the three major headlight competitions.
Jul 09,2015
The advantages of LED light sources are obvious.
LED components have the significant advantages of being small in size, compact for layout, and flexible in design, providing automotive manufacturers with ample space for vehicle design, breaking the constraints of past lighting systems on design innovation, and meeting the aesthetic needs of vehicle exteriors. Domestic brands in China have a strong interest in this area, which has also brought business opportunities to the domestic LED automotive lighting industry.
Due to the fast lighting speed of LED car lights, they can reflect vehicle and road conditions in real-time, giving drivers more time to make judgments. It has been measured that at a speed of 100 km/h, it can shorten the braking distance for the following vehicle by 7.5 meters. This effectively prevents rear-end collisions and reduces automotive safety accidents, which has positive significance for improving vehicle active safety. In addition, LEDs have controllability; for example, light patterns, illumination range, and brightness can be linearly adjustable, which traditional xenon lights cannot achieve. In recent years, LED technology has continuously developed, overcoming technical shortcomings, and LED car lights are becoming increasingly intelligent. For example, some models' LED headlights are equipped with oncoming vehicle detection radar and control computers, which automatically adjust the light pattern and even reduce brightness when encountering oncoming vehicles, even if the driver is using high beams.
Energy saving and environmental protection are another significant advantage of LED car lights. According to the Ministry of Industry and Information Technology's plan, by the end of 2015, automotive lighting needs to meet carbon dioxide emission reduction targets. Since LED car lights are cold light sources, they have the advantages of low power consumption and long lifespan, consuming only 1/10 of the power of traditional lights, which can better save fuel consumption. It is reported that if we compare it to everyday energy-saving bulbs, energy-saving bulbs save 4/5 compared to incandescent bulbs, while LED lights save an additional 1/4 compared to energy-saving bulbs. In cars, for the same daytime running lights, the energy consumption of LED components is only 1/20 of halogen lights.
The German three giants lead the automotive lighting technology.
The LED car light market is divided into internal and external car light applications. In the application of internal car lights, due to the rich colors of LEDs, they are currently widely used, such as in instrument panels, where cars using small bulbs for instrument panels are now very rare. In the coming years, all car instrument panels should use LED lights. In addition to instrument panels, common internal LED car lights include dome lights, instrument lights, door lights, reading lights, and step lights. Common external car lights include headlights, brake lights, fog lights, reverse lights, turn signals, and daytime running lights. Currently, many models have already adopted LED for brake lights, tail lights, turn signals, reverse lights, and high-mounted brake lights. As for the application of LED headlights, Audi, BMW, and Mercedes-Benz are currently leading the way.
In the automotive world, the best at using lights are probably Audi and BMW. BMW's angel eyes and continuous light strip tail lights have become classics, while Audi has perfected the design of car lights. As experts in lighting, these two companies have also been the first to apply LED light sources to multiple models. Currently, the BMW 5 Series can be equipped with LED headlights, and some models of the BMW X6 come standard with LED headlights. Most models of the Audi R8 and A8 are also equipped with LED headlights as standard. Additionally, although Mercedes-Benz may not be as innovative as the other two, they are willing to invest in car lights, with the new E-Class equipped with LED headlights across the board, and the S-Class is even more so. Furthermore, the new generation of Mondeo, new generation X-Trail, Honda Accord, Lingpai, and Jade all have models equipped with LED headlights.
Due to high costs, LEDs will still not be able to fully replace halogen and xenon lights in the next 3-5 years. Looking back at the development history of car lights, halogen lights took nearly 20 years to mature. From the perspective of the advantages of LED car lights, they will inevitably become the trend in the development of car lights in the future, but a transition period is needed. In the future, the price of LED car lights will steadily decrease, and they will be more widely and comprehensively applied in the automotive field, with LED car lights becoming safer and more intelligent.
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