Which is more practical, halogen lamp, xenon lamp and LED lamp?

Halogen lamps are the favorite of low-profile cars, because compared with xenon lamps and LED lamps, halogen lamps are cheaper. Although the brightness is a little low, it is just as well not to use cars often at night. In this era of LED lights flying all over the sky, I don't know if you have noticed that halogen lamps are still used in the front fog lights of cars. Halogen lamps are dark, but they have strong penetrating power. Fog lamps need this penetrating ability, not pure brightness. Secondly, the low color temperature of halogen lamps can reduce the diffuse reflection caused by fog and make driving safer in foggy days.

The brightness of xenon lamp is three times that of general halogen lamp, and it can provide quite good lighting ability in all kinds of weather conditions. Compared with the "dark" effect of halogen lamp, the lighting effect of xenon lamp is not less than half a star, and it is not bad to install a xenon lamp in the car. However, the disadvantages of xenon lamps are also obvious. In addition to the high price, there will be delays in starting. It takes three or four seconds to reach the rated brightness after the headlights are lit. If you want to use the high beam to remind the oncoming car or the car in front at this time, the delay of several seconds is unreliable. Xenon lamp is good, but it is not a universal artifact. Although the color temperature is higher than halogen lamp, it is more acceptable to human eyes. However, there is another characteristic of color temperature. Light with low color temperature will cover light with high color temperature. For example, if you turn on a xenon lamp next to a street lamp with a color temperature of 2000k, the lighting effect will be greatly reduced.

As a new force of electric light, LED lamps are widely used in automobile lamps and other fields. LED lamp is a light-emitting diode, which has a longer service life and less power consumption. Small size, high value and strong plasticity can be shaped into any beautiful shape by designers. Of course, the price is also very expensive. The most expensive full LED headlights generally only appear in luxury cars. At present, LED lamps have gradually replaced halogen headlights and xenon headlights. The only drawback is that you need to buy a car at a higher price than a halogen car.

Different kinds of headlights are mainly classified according to light source and reflection mode, but the height of each headlight can be adjusted. The most common halogen headlights, integrated low beam/high beam and split low beam/high beam; Xenon headlights, headlights with automatic level adjustment, including the latest LED headlights, can all be adjusted in height.