The progression of the history of headlights is essentially the extension and promotion of functional attributes. Since the birth of cars in the 19th century, headlights have experienced continuous evolutionary iteration with cars. From the burning kerosene lamp in the 1880s, to the acetylene lamp in the early 20th century, and then gradually to the spiral tungsten filament incandescent lamp, as well as the late 20th century, halogen lamp mature technology, xenon headlights, the 21st century appeared high brightness and more energy saving LED headlights, laser headlights. It can be found that the advancement of the lamp is essentially the continuous extension of its functional attributes, from the initial "safety parts", extended to the "appearance parts", and even the future "smart parts". The improvement of functional attributes directly leads to the continuous doubling of the upgrade value of the headlight track.

 The light source was upgraded from halogen to laser, and the performance parameters were improved significantly. The headlights are upgraded from the original halogen to xenon, LED and laser headlights, and the most intuitive improvement lies in the light intensity, service life and energy consumption. According to the current LED, laser headlights generally use the combination of multiple light sources mode estimation, LED, laser light line strength can reach more than 6000 lumens, lighting distance of 200-300 meters, far beyond the halogen lamp and xenon lamp, improve the safety of driving. In terms of service life, the light source of LED lamp can reach more than 5000 hours, and the service life is significantly improved. In addition, due to the higher energy efficiency, the energy consumption of a single light source is 3-18W and 5W, respectively, which also has significant advantages over halogen and xenon lamp. Therefore, from the use of all dimensions of performance, the car companies have sufficient power to upgrade the lamp light source, and constantly upgrade to LED, laser headlights.

 Light source upgrade, promote the value of the track upgrade doubled. For example, the unit price of a set of halogen headlights is 400~500 yuan, and after upgrading to xenon lamp, the price rises to 800~1000 yuan. Under the further upgrade to LED, the unit price can be increased to the range of 1600~2000 yuan, and the track is significantly upgraded and expanded.

In response to the trend of The Times, the next direction of headlights —— intelligent. Since 2016, the car lamp industry has started a round of LED boom, and the penetration rate of the domestic industry has rapidly increased from 5% to 65% in 2021, bringing a large increase to the industrial chain. In the whole process of the rapid growth of LED headlights, it is not difficult to realize that this is based on the industrial opportunity brought by the two functional attributes of "safety parts" and "appearance parts". LED brightness (safety) and aesthetics (appearance) are significantly better than previous halogen lamps and xenon lamps, so the rapid growth in penetration is not difficult. Follow this idea, we are firmly optimistic about the lights in the era of intelligent car.