When it comes to LED technology, besides display screen, lighting is also one of the important application fields. In addition to the increasing application of traditional home and public facilities lighting to LED, the design and manufacture of automobile lamps have also begun to continuously integrate LED technology. LED lights refer to lights that use LED as light source. Because LED has the characteristics of high brightness, rich color types, low power consumption and long service life, LED is widely used in the field of automobiles. 2012 car traditional light source lighting accounted for the whole lighting light source of the total output of the 10 about so vehicle market is the favorite of LED lighting subdivision market. LED has been applied to the interior and exterior of automobiles, especially in the interior lighting of automobiles. The application of color LED has been very mature, such as using instrument lights, backlight lighting switches, automobile reading lights or head-up display systems, etc. The exterior of the car is mainly composed of combined LED taillights, such as brake lights, turn signals and stop lights. Manufacturing, experts believe that by 2013, all car taillights above 95 will use led taillights. The whole market scale of automobile led taillights will reach an output value of 2. 3 billion yuan per year. In addition, the future development market of car taillights will also change. Demand in the European market will no longer be strong, and 80 of the car led taillights will be sold to emerging markets such as the Middle East and South America. The market share of car taillights from emerging markets such as South Asia, Latin America, Oceania and the Middle East will multiply. At present, the main manufacturers of LED automotive lamps are: Philips Lighting, lighting technology, Huicheng optoelectronics and other professional manufacturers. With the continuous update of LED technology and the development status and trend of LED lamp technology, China's LED high-position brake lamps will be further popularized, prices will drop steadily, and LED rear brake lamps, turn signals and fog lamps will begin to be commercialized. LED Automotive Lamps are developing towards personalization and art, and LED intelligent control system will also develop rapidly.