According to the prediction of industry experts, by 2013, about 3 billion of new cars will use LED in taillights lighting, and the market size of LED automotive lamps will form an annual output value of yuan, it is estimated that the penetration rate will reach 70 in 2015. In recent years, LED lighting has become more and more popular among automobile manufacturers due to its advantages of energy saving, environmental protection, longevity, low heat, earthquake resistance, good color rendering, fast response, etc. Many models have adopted LED. With the improvement of LED technology and the decline of cost, LED has not only been applied in vehicle models, but also has been widely used in low-end car lights such as Tianjin FAW Xiali, Chongqing Changan and BYD. However, LED lighting companies still face many obstacles to entering the lamp market. First of all, LED lighting enterprises themselves do not belong to specialized lamp enterprises, do not know enough about the requirements of the international standard system, and lack the development and production standard system of enterprises. Secondly, LED lighting enterprises lack the demand traction of the whole vehicle, so they have to develop functional prototypes of their own products and seek supporting manufacturers only after being tested by the whole vehicle factory. Thirdly, due to the imperfect configuration of experimental equipment, the stability and safety of products designed by LED lighting enterprises are also difficult to meet the requirements of car factory standards in a short period of time, which restricts LED lighting enterprises from entering. The cost of LED remains high, the price of lamps is high, and it is difficult for medium and low-end cars to accept. However, the vast majority of domestic self-owned brand automakers are pursuing low cost, and the production models are basically foreign mature models. It is difficult for manufacturers to directly change the design of car lights, to a certain extent, the demand for LED lamps is restricted. In the marketing mode, aiming at the front-loading market where the automobile factory will equip electronic products well when leaving the factory, the access threshold is relatively high, which is basically the matching in the system of the automobile factory, this market is difficult for domestic LED lamp companies to cut in. Therefore, the competition is mainly manifested in the after-loading market, which is relative to the 4S stores in the front-loading market, auto parts and other sales channels. The aftermarket is a completely competitive market. Although there are some opportunities, there are also characteristics of uneven product quality and low sales price. International High-end car manufacturers such as Mercedes-Benz, BMW, Toyota, Ford, etc. have introduced new style Cars with colorful LED lamps to attract customers, especially Japanese cars have been widely used for LED. It is called a car lamp that does not need to replace the bulb for a lifetime. It is one of the dazzling products in the international automotive electronics. At present, the price of LED lamps is quite different from that of traditional lamps. For example, for a medium and high-grade car, the incandescent lamp combination rear lamp costs 120 yuan/set, while the LED Combination Rear Lamp costs 210 yuan/set. Therefore, the sharp drop in LED prices, the continuous improvement of luminous efficiency and the improvement of heat dissipation technology are the main focus of the future development of LED automotive lamps. Although there are still some problems to be solved, LED has the advantages of small volume, vibration resistance, energy saving and long service life, which are all elements to increase the application of LED inside and outside the car. With the continuous improvement of product technology and the continuous expansion of product categories, automobiles will develop in the direction of safety and intelligence in the future. After the EU and other countries successively announced the installation of new car lights, as well as the comprehensive ban and cut-off of incandescent lamps, the demand for LED lights and main lighting has risen. At the same time, with the improvement of people's living standards, people's requirements for the overall performance of automobiles are improving, and it is difficult for domestic brand automobiles to achieve better results only with low configuration and low price competition. Domestic brand cars will also choose to improve their car support to participate in the competition, and the proportion of using LED lights will increase rapidly. Since the previous LED daytime running lights were all exported, the domestic market share and popularization rate are still not high, and many lamp modification shops do not have enough knowledge of the installation technology of daytime running lights. However, it can be said that with the EU's installation of daytime running lights as a standard for car modification, domestic car owners have also begun to pay attention to the modification of daytime running lights. Because the market share of daytime running lights in automobile modification will gradually expand, I believe this market should not be underestimated.