LED will become the mainstream of car lights in about 10 years

About 10 years, LED will become the mainstream of the lamp - the current status and prospects of the domestic LED lamp market

Since the end of the 19th century, since the birth of the world's first car in the hands of Carl Benz, people have been constantly exploring the automotive lighting, especially the headlights have always been the focus of automotive lighting research, experienced acetylene gas lighting, incandescent After the lamp, tungsten halogen lamp and xenon lamp, Nissan used 72 LEDs as the central high-position brake lamp in the 300ZX car in 1986, marking the beginning of LED application in the automotive field, and now the LED headlamp has been developed. Enter the public's field of vision.

In China, in 1999, Shanghai Xiaohao Auto Lamp Co., Ltd. first matched LED high-position brake lights with Shanghai Volkswagen Santana. Nowadays, the domestic automotive LED signal market is relatively mature, and white LEDs have been started on daytime running lights (DRL). At present, LEDs in domestic automotive lamps are mainly used in car signal lights, mainly used in medium and high-class car signal lights, and mostly in red and yellow.

According to statistics, at present, there are 20 million households with purchasing capacity in China. China is likely to become the world's third largest auto market, accounting for 6% of the global market, second only to the United States and Japan. By 2025, the size of China's auto market will reach the size of the current US auto market. China has become the fastest growing region for car sales in the world today. According to the statistics of the China Association of Automobile Manufacturers, the sales of domestic lights in 2009 reached more than 15 billion yuan, of which the proportion of LED lights in the market has increased year by year. Take Shanghai Xiaohao Lights Co., for example, in 2009, LED lights accounted for all cars. 11.7% of the sales of lamps, it is estimated that the proportion of LED lamp sales in the 2011 LED lamp will reach more than 15%, and by 2015 LED lamp sales will account for more than 30% of the total sales of lamps.

Table 1 Shanghai Xiaoyan headlight company sales statistics:

At present, in the newly listed mid-to-high-end models, LED taillights (combined rear lights) have become mainstream. Domestic LED lamp applications will also become more and more popular, and will spread to low-end models. The future development trend of automotive LED lamps will be high-power white light and high-power white light signals, such as headlights, front fog lights, and reverse lights. In general, about 10 years, LED will become the mainstream of automotive lamps. LED lights (mainly signal lights) are used in the domestic market, and most of the Japanese mid-to-high-end cars are developed. Roewe, Chery, Brilliance and other independent brand cars also have applications. In foreign countries, LED headlights have been adopted in several models, but only in small quantities. Domestic LED headlights are still under development. In 2008, Shanghai Xiaoyan tested all LED lights (including headlights) on three Shanghai Rongwei hybrid vehicles. It is estimated that domestic LED headlights will really take more than two years to market.

Looking at the current competitors in the domestic car market, the top ten companies in the sales of enterprises with foreign blood account for more than half of the country.

Table 2 Top ten domestic sales of headlights in 2009:

In addition to the lumen efficiency and cost of LED lighting in automotive lighting, due to the complex shape of the surface of the automotive lighting, limited internal space and closed, high-power LED application cooling is a difficult problem. At present, thermal simulation test technology, LED light efficiency and heat dissipation technology are relatively weak. At present, there is still a big difference between the price of LED lamps and traditional lamps. For example, a medium-to-high-end car, incandescent lamp combination lamp is 120 yuan/set, and LED combination lamp needs 210 yuan/set. Therefore, the LED price has dropped sharply, the luminous efficiency has been continuously improved and the heat dissipation technology has been improved. This is the main focus of the future development of LED automotive lamps. With the gradual improvement of LED cost performance and the development of low carbon economy, the application of LED in the lamp will be more The more you come.

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