LED headlamps and xenon headlamps which is better?

Regarding the headlights of cars, the light source is undoubtedly the most important. From the original incandescent lamp to the xenon lamp and the LED headlamp. Each generation of light sources illuminates the path that belongs to that era. With the popularity of LED headlamps, because of the small individuality of the light-emitting originals, there is a good foundation for design latitude. The automobile headlights also changed from the initial safety to an automobile safety equipment that has both safety and design considerations. Today we talk about the learning between the more popular LED headlamps and relatively mature xenon lamps.

First of all, LED is an electroluminescent device, using a solid semiconductor chip as a light-emitting material, and direct light emission by photon emission caused by carrier recombination. LED headlamps are lighting fixtures that use LEDs as light sources. Compared with the xenon headlamps, in addition to illuminating a larger area and the brightness is brighter, there is also a point of lighting no response time. The xenon lamp is higher in brightness than the predecessor "halogen lamp", and has a long life and the lamp looks better than the halogen lamp. In addition to the innovative stacking of features using its small light-emitting elements, LED headlights also have hard power, and major auto makers will not be widely used. Maybe Audi is the "lamp factory" in your mind, but the first manufacturer to use LED light sources for car headlights is not Audi. Instead, it is the 2007 production version of the Lexus LS600h, while Audi is the full-LED headlight Carrier. In addition to different designs, the LED headlamps now more inject their unique brand genes into the car.

The characteristics of the LED itself are also a very important reason for its popularity in the market. The LED itself is divided into a lens and a lensless lens in terms of physical structure, but in any case, the actual lighting effect is the most important. Many car owners feel that LED lights are brighter, but in fact they must make clear the difference between “bright” and “white”. Compared to xenon lamps, LED lights will look much whiter. It is more accurate to measure the luminous flux by the physical unit “lumens”. Most of the data indicate that there is not a lot of difference between the absolute lumens of LED lamps and xenon lamps. There is far less difference between xenon lamps and halogen lamps. The more difference is the difference between color temperature and lighting area. What is the area of ??lighting, in simple terms is the size of the area illuminated by the lamp. Obviously the larger the area, the more things you see and the more secure, and the reflector device is particularly important for car headlights. The traditional xenon lamp can only use the maximum refraction angle of the lens to achieve a larger illumination width. For a wider width, it can only be achieved by rotating the lamp head or other fill light. However, because of its physical characteristics, LEDs can achieve a wider range of lighting. Compared to xenon headlamps, LED headlamps are better than xenon headlamps in terms of lighting area and evenness of lighting.

Whether Xenon headlights are good for nothing? No, after all, the xenon headlamps have existed for many years in the history of automobile development and must have their inherent advantages. That is the degree of natural penetration and concentration of xenon headlamps. Let's talk about the degree of concentration, because of the lens, so that the light is more concentrated and can be irradiated farther in a straight line. The LED headlamps are generally lensless, some high-end models such as Mercedes-Benz S-class, Porsche Panamera's LED headlights will have near-and-lens LED bifocal lenses. This has, to a certain extent, affected the ability of the LED headlights to collect light. The second point is that many LED headlight owners have a headache. China's terrain is complex and there are large differences between the north and the south of the climate. In most areas, most of the weather is rainy or hazy. This led to the opening of the LED headlights, feeling like a white wall, a group of white light reflected back, there is no sense of security at all. In contrast, the warmer xenon headlights or traditional halogen lamps perform better in fog days. It is no wonder why many car fog lamps are based on warmer colors. In general, it is not difficult for the LED headlights to adjust the color temperature, but will the automakers compromise in this era of "white" for the United States?

Automobile lights are just like people's eyes. Besides being more beautiful, they are safe. With the development of LED technology, it is believed that matrix-type headlights, automatic high- and low-beam lights and other high-tech equipment are not difficult for every car. Let us wait and see!