Another piece of automotive interior application refers to some non-functional lighting, such as seat lights, door handle lights, reading lights, and so on. In the past, such products were mainly 3-5w bulbs, but in order to meet the needs of energy saving and environmental protection, the EU and the United States began to require LEDs to replace automotive interior lighting bulbs two or three years ago. The wattage of this led application is larger than the instrument panel. The instrument panel is mainly red-yellow or white LED lamp beads of about 0.1w. If it is this application, it is mainly white light, and the power will be 0.5- Around 1w, the entire output value will increase. There is also a piece of air conditioning controller, touch screen, etc. will also use led.
The interior led is already a very mature market, and the annual growth rate may be a few points. From the data of 2013, the market size of interior and exterior is basically the same. The market size of the exterior in 14 years is more than the inner room, and the development of the outer room will be faster.
Next, talk about the exterior, the extreme quality requirements of the LED relative to the interior. First, the external room will affect the safety, so there are regulations and there are no regulations in the inner room. The automotive industry led has its own certification regulations, which is aecq 101.
This regulation regulates all parts used in automobiles. For LEDs, it requires high and low temperatures, dry humidity, etc. The whole lamp must comply with this regulation.
The exterior lights include the two parts of the overhead and rear lamp, the overhead refers to the forward light, and the rearlamp refers to the tail light. Rear lamp is the earliest and most popular exterior product. Rear lamp mainly includes such products, the first is the rear combination taillights. This product uses red and yellow light led, low cost and fast application. From 06-07 onwards, the car began to use led rear combination taillights. The second is the high brake light. The popularity of this lamp led is also very high, currently more than 80% of the high-position brake lights are using led. The third is other license lights, rear fog lights, reversing lights and other lights. From the past two years, the penetration rate of led has also increased rapidly. The power of the led LED used is relatively high.
Overlighting refers to the forward light, and the led penetration rate is slower. This piece uses high-power led white light, which is costly. From the performance point of view, the forward light is relatively bright, and the requirements for LED light distribution are relatively high. Therefore, it takes time for the lamp factory to switch from traditional light bulb to led technology accumulation and research and development, and the certification cycle is also relatively long. The first model with led forward lights appeared only in 2006, and is a high-end model such as Lexus and Audi, Cadillac. The real development of the forward lights is that the European Union has enacted regulations to install daytime running lights. After the car engine is turned on, the daytime running lights must be bright, so the life expectancy is relatively high. Ordinary led lights generally use halogen lamps, and halogen lamps have a life of less than 1000 hours. In 2011, the EU must force the daytime running lights to be installed. North America is 12 years. There are no mandatory regulations in China. From the perspective of the car manufacturer, the cost of installing daytime running lights will not increase too much, but consumers may accept a high degree of acceptance. Everyone knows that there is still a gap between domestic independent brands and foreign engines and performance, but if there is room for improvement than modeling and lighting. The domestic independent brand is still very high on this enthusiasm, and the penetration rate is increasing rapidly. Others, such as front turn lights, far and near lights, headlights, etc., have seen a rapid increase in led penetration rate since 13 years.
From a global perspective, halogen lamps account for about 80% of the light in 13 years, and HID xenon headlamps account for about 15%. The LED ratio may be about two points. But the development of LED in the next two or three years may be very fast. We know that the current high-end models of Mercedes-Benz, BMW, and Audi have basically used led lights. In the 15-16 years, 100,000-200,000-class cars will use LEDs on a large scale. By 2020 we estimate that the headlight penetration rate will increase to 20%, hid will shrink to 10%, and halogen will remain at around 70%.
In the field of DRL (daytime running lights), the penetration rate of led 13 years is about 30%, halogen and light bulbs account for 20%, and 50% of cars do not use DRL.
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