Whether adjusting the button in the cab or adjusting the nut on the headlight assembly with an Allen wrench, it should be adjusted against the wall. First, choose a flat land, stop at the front of the car about five meters away from the wall, and the angle between the car body and the wall is vertical. See if the left and right sides are the same height. The right side can be slightly higher than the left side. If the right side is lower than the left side, the adjusting nut on the right side of the headlamp assembly can be adjusted with an Allen key. Adjust the height of the left and right headlight assemblies against the wall. After the headlights on both sides have the same height, the next step is to adjust the irradiation distance of the headlights, that is, adjust the heights of the two headlight assemblies at the same time. Drive the car to a flat clearing and measure the distance of 30 meters. The distance of 30 meters of low beam tangent irradiation is basically suitable. If you set it too high and shine too far, it will affect the sight of the driver coming from the opposite side. Remember, this is a distance of 30 meters. Car headlights low beam effect: the tangent of low beam is obvious, and the left is low and the right is high, which does not affect the sight of oncoming drivers. Car headlights's high beam effect: the high beam is concentrated and the irradiation distance is long. Of course, every headlight assembly is different. If the high beam is too high when the low beam is set to 30 meters, the low beam can be lowered. This is not a math problem, but varies from person to person, depending on the specific situation.
What problems should be paid attention to in car headlights refitting?
First of all, the state has issued a series of laws and regulations to restrict the modification of automobiles, so we must comply with the requirements of relevant laws and regulations when modifying car headlights, especially the modification of xenon headlights. Laws and regulations clearly stipulate the color temperature, brightness and angle of xenon headlights, so friends who want to modify or have modified xenon headlights must know the relevant regulations in advance. Secondly, the illumination angle and luminosity of the modified headlights meet the relevant standards, otherwise the modified headlights may not pass the annual inspection. In addition, for the modification of xenon headlights, it is only recommended to modify the low beam and the high beam or use ordinary halogen lamps. This is because the lamp type of the high beam is too divergent, which is also unqualified in the annual inspection. Third, we should pay special attention to the quality of modified headlights. Because there are many kinds of modified headlights on the market at present, the price difference is also great. However, due to the strict requirements of xenon headlights on processing technology and technology, it is difficult to guarantee the product quality of ordinary manufacturers. It is suggested to choose some well-known products from big manufacturers to avoid losing big because of small. Finally, it should be noted that headlight modification should not only focus on yourself, but also consider others. Some people choose blue light with too high color temperature to be cool, which will dazzle passers-by and drivers on the other side and affect driving safety. This is not desirable. In addition, you must pay attention to the rules of using lights when driving at night, and remember that safety is no small matter!
How to clean car headlights?
Toothpaste: Apply a little particle-free toothpaste to the car cleaning cloth, and rub it in circles when scrubbing, especially in the fuzzy areas for several times. After the blur subsides, add water and a little toothpaste, and rinse with water after 3-5 minutes. Soap water: Soap water has strong cleaning ability and weak corrosiveness, which can effectively remove oil stains and increase brightness. Polishing agent: Add a layer of polishing agent to the car headlights and wipe it with a soft cotton cloth. Cleaning solution: Take down the car headlights and clean the lampshade with universal water, glass water and other cleaning solutions. Or inject cleaning solution, shake well, dilute the solution, and blow dry with air gun. Degreasing agent: Degreasing agent will not corrode paint surface. Apply it to car headlights and gently wipe it. If the headlights are inside, look at your car first. The closed headlight assembly of some cars needs to be removed to clean the lampshade. Cleaning solution is generally universal water, glass water and the like.
How to modify car headlights?
Although I am not a professional, I would like to say a few words to my friends who want to change the lights. There are many new headlights, so we won't spend that money on them. When the original car is traveling far away, if the low beam light is not on, you can make a small change to make it bright both far and near. If the low beam or high beam is not bright enough for several years, you can only change this one. If the distance light is not enough and the money is not bad, change the headlight assembly. Not if you don't understand. Don't buy it when the online price is right, and then find someone to install it. Headlights really answered that sentence: a penny is worth a penny, and a hundred more is right! You'd better go to a special refit shop, and some only change the lights to give you a warranty, which is more professional! It may cost hundreds more, but it's better than not being satisfied with the change! For the problem of light source, I still suggest xenon headlights with lenses! The light bulb of the original car really doesn't work. It depends on how you want to change it and how much you want to spend. I suggest using Han Lei quick-open light bulb to refit Hela 5 double lens and Ozm digital stabilizer. This configuration is sufficient and the price is favorable. The more high-end one is the imported Osram suit, which has better effect.
Why is car headlights so expensive?
First of all, the headlight price of Dachang car is probably between 1000-5000, which is not as exaggerated as the topic owner said. It's probably hundreds of thousands of cars, and the headlights cost thousands of dollars (cars above 500 thousand are basically imported lights, which is out of the scope of discussion). If 4S wants tens of thousands of dollars to change a lamp for you, that's 4S's problem. Second, in addition to the material costs you can see, there are many R&D costs and production costs you can't see. In layman's terms, car headlights is just a few light bulbs. Can white and yellow light alternately? However, people who really understand the automobile or the automobile industry will know that there are various regulations and reliability requirements for such things as several light bulbs wrapped in a plastic shell. For a car headlights, our requirements include but are not limited to: the light intensity meets the requirements, the bulb life can meet the requirements, it can be used normally in extremely hot or cold environment, it can be used normally in humid and rainstorm environment, and it can be used normally under continuous vibration conditions. For example, it can't be foggy, flies and mosquitoes can't get in, and the plastic inside can't be burnt by the engine temperature and its own lighting temperature. Looking at the news of various car recalls, we can find that the vast majority of recalls are about what problems may occur in some extreme situations, even if the probability of this happening is only one in ten thousand. Therefore, designers of automobiles and parts need to consider all kinds of extreme situations when designing. For example, the car lamp, the designer really considered that you drove for 10 hours in a 50-degree desert, and then parked the car on an uphill slope to let the sunlight shine vertically on the car lamp reflector, and at the same time, you forgot to turn off the headlights, so that your lamp could not be baked. Tell me, what materials should be used for the transparent plastic shell in front of the lamp and the shiny thing behind the light bulb to meet the requirements? Do you have to give it a cool and breathable vest? Which supplier is not qualified for such a pile of parts? From light bulbs to lenses to all kinds of plastics to wire harnesses, which one is not bought by well-known manufacturers in the industry? Another big problem that is easily overlooked is the cost of design and development. The drawings drawn by the designers of the automobile main engine factory are particularly cool, and how to realize them is a matter for the automobile lamp factory.
About car headlights, can I buy a car LED headlight and change it directly?
Today, I will answer this question through this article: Can I change LED bulbs directly? We should consider the following aspects: 1. What kind of car do you have? If it is Volkswagen sagitar, Jeep, ix35, etc., it is impossible to install ordinary LED headlights, and it is necessary to install special LED headlights with decoding function. So you can't just install LEDs, and there will be a fault light on the dashboard to call the police. 2. What is your headlight assembly like? Is there a lens? If there is a lens, is it a low beam lens or a double beam lens? Headlamp assembly with lens, because the lens will block part of the light, therefore, to choose higher brightness LED headlights, how to choose higher brightness LED headlights? Look at the manufacturer's standard data? Don't! There are many details in it. If you take it apart, you have to type a lot. Skip here first. If any riders are interested, I'll add.
Some views on refitting xenon headlights for automobiles
First of all, it is illegal to modify most xenon headlights in China at present. In Europe, the law does not allow this modification, only xenon headlights are replaced, not the assembly. In fact, many domestic sales of modified products within a time limit have taken advantage of the law. In Europe, the law clearly stipulates that cars equipped with xenon headlights must have lenses so that the light will not diverge and sway to the eyes of the driver of the other car. Pay attention to the headlight assembly of double B, Audi and PST V6 (of course, some low-end models are not equipped with xenon headlights), and there is a fisheye-like lens in it to focus light. At night, when you turn on the running lights against the wall, you can clearly see that there is a dividing line between light and shade on the wall (the light coming out can also see obvious color levels, which will be discussed later) to protect the eyes of drivers coming from the opposite side. Therefore, the car equipped with the original HID assembly looks bright, but it is not dazzling. Therefore, it is completely wrong for some students to think that xenon headlights must be bright and dazzling. In fact, the original xenon headlights are not as dazzling as traditional halogen lamps, but the effect is several times better. So if your headlight assembly is not equipped with a lens, I think it is best not to change xenon headlights, because the lampshade of traditional halogen lamps can't concentrate light at all, and the light will definitely diverge. Some cars, such as Liu Ma, Hyundai Coolpad, SONG 3k and A4 Standard Edition, are equipped with halogen lamps, but because there are lenses in the assembly, the modification effect will be relatively better. Of course, it still needs technicians to adjust, and the focal length is very complicated, because the length of xenon headlights is different from that of halogen lamps. Moreover, the lens of xenon lamp assembly is different from this halogen lamp lens. A truly well-made xenon headlight lens (such as the assembly of Hella and Bosch used in German cars) not only has good condensing performance, but also has beautiful color change. With the ups and downs of the road surface, the color will flash purple and blue from a distance, and it will be pure white light with the same color temperature as sunlight from a close distance. Some cars, it is absolutely impossible to change xenon headlights, that is, those cars that use H4 lighting assembly with integrated far and near light. The lights of this car are so scattered that the driver opposite you thinks you are driving a low beam. H7 lighting assembly for golf and POLO is better, but it is better not to change it.