How to correctly select safe and effective headlights for cars?

The importance of car headlights for driving safety is self-evident, especially at night. We need car headlights to illuminate the driving field of vision, and warn and remind other vehicles or pedestrians at the same time.

Therefore, it is very important to correctly select safe and effective car headlights.

At present, the mainstream automobile headlights mainly include LED headlights, xenon headlights or halogen headlights. The author will introduce the characteristics of these three headlights respectively to give the subject a reference for choosing automobile headlights.

The brightness of halogen headlights is much inferior to that of other headlights, and most of the light sources are yellow.

Most of the early halogen lamps were used with bowl lampshades, and now halogen headlights are also equipped with lenses. The service life of halogen headlights is relatively short, and there will be blackening after long-term use. However, the penetration ability of halogen headlights in rainy and foggy days is still very good. For example, our fog lamps use halogen headlights.

The cost of halogen headlights is very low, and the price is cheaper than the other two kinds of headlights.

Then xenon headlights. The brightness of xenon headlights is much better than that of halogen headlights.

Xenon lamp is a heavy metal lamp. It fills a variety of chemical gases, such as xenon and other inert gases, in the anti ultraviolet crystal quartz glass tube. Then, the on-board 12 volt power supply is instantaneously increased to 23000 volts through the supercharger. Under high voltage, xenon will be ionized and a light source will be generated between the two poles of the power supply.

As the xenon headlamp assembly is much more complex than the halogen headlamp, the replacement of the xenon headlamp is not as simple as the replacement of the bulb (the xenon headlamp assembly includes the bulb, ballast and supporting line group).

It's LED headlights. The brightness performance of the LED headlamp group is very good, and the penetration ability is also very good. In addition, the LED headlamp group has low energy consumption and long service life, which is the performance of the comprehensive performance of the three headlamp groups. Therefore, now more and more vehicles begin to use LED headlamp groups. However, the cost of LED headlights is high.

To sum up, I suggest that the main topic is LED headlights, followed by xenon headlights and halogen headlights.