How far is the illumination distance of the headlight normal?

2020-06-09 14:42:34

The illumination distance of the headlamp has been adjusted at the time of delivery. If the headlamp has never been moved, it will never need to be adjusted. Generally, after changing the headlamp assembly, accident shaping at the front of the vehicle, or even changing the bulb, the height of the light may change. If the headlamp or bulb is moved, check whether the bulb or headlamp is installed in place before adjusting the height of the lamp. In general, the lights on both sides are getting closer or farther; the illumination distance of the headlights on both sides is different, one side is higher and the other side is lower; the headlights on one side are deviated, etc.

The illumination distance of most of the low beam lamps is about 30-40 meters, and that of the high beam lamps is about 100 meters. If the exposure distance is too close, the distance that can be seen by driving at night is also close, which is not conducive to driving safety. If the exposure distance is too far, because of the limited light intensity, the whole road ahead will not be bright, low objects and potholes on the ground will not be visible, and it is not conducive to driving safety. If the intensity of the light is high enough, such as a laser headlight, the high beam light can shine for a longer distance. No matter what the low beam lamp is, it should not be too far. If it is too far, it is like turning on the high beam lamp, which will make the vehicle in front and the vehicle in the opposite direction not clear the road when meeting. In fact, there is such a situation. It's hard to see the road where the car has been illuminated. The other side has turned on the high beam light, and it's actually a low beam light when it comes closer. It's only a relatively long distance. How to see whether the light is the low beam or the high beam? The light bulb on the outside of the headlamp is the low beam and the light bulb on the inside of the headlamp is the high beam.

The height and left and right of the light can be adjusted by yourself, and the adjusting screw is on the position of the upper part of the headlight and the back part. Look down from the top of the headlight. If you can't see clearly, shine a flashlight. You will see a cross screw, which is to adjust the headlight. Just find a cross screwdriver and turn it left and right. It is often necessary to adjust the height of the headlight. Find a wall and turn on the headlight at a distance of four or five meters. If the light level is different, you can easily see it. Just turn the adjusting screw to adjust it. There is a tangent line for the low beam light. The limit of the light is very clear. There is a very obvious line on the wall. There is almost no light above, and there is light below. There is no tangent line for the high beam, and the lighting limit is not obvious. When adjusting, you can see the point with the strongest lighting intensity.

If the left side of the headlight is lower than the right side when the car is new, that is to say, the illumination distance of the right side low beam is far from the left side. It is normal to look at the black in front of the left side at night, so as to prevent the other side's vehicle from being illuminated when meeting. If you drive on a road with street lights, you can't see it, and it won't affect you. You don't need to make adjustments. If you often drive in the place where there is no street light, you feel that this kind of design affects your vision very much. You can adjust it to the same height as the headlight on the right.

How long is the life span of the headlights? The bulb is divided into halogen, xenon headlamp and LED headlamp. The service life of halogen bulb is the shortest, about 500 hours, and it may be shorter, especially the low beam bulb in the car, which is easy to break. Xenon headlights and LEDs have a long life span of tens of thousands of hours. If there is no quality problem, there will be no lack of brightness in five or six years. Pay attention to halogen bulb. Although it is still bright after a long time of use, it will not be bright enough due to attenuation. It may not be able to pass the car review. It needs to be replaced with a new bulb. So if I don't think the lights are too bright at ordinary times, I can replace them earlier, and the price is not expensive.