LED semiconductor lighting network news with the development of technology, automotive lighting is also constantly "evolving", but have you found that in this era of LED lights, the front fog lights of cars are still traditional halogen bulbs! Why not switch to LED light source? Let's talk about this today. Halogen fog lamps are more dangerous to retrofit LED light sources In fact, many of my friends have such questions. Headlights, turn signals, and width lights are all LEDs. Why are fog lamps still halogen? So simply replace the fog light with an LED light source, the reason is, "halogen light is too dark"! In fact, such an approach is not correct and is not safe. Because for the fog lamp, what is needed is not the brightness of the light, but the ability of the light to penetrate. Therefore, using the LED light source to increase the brightness alone, driving in the foggy day can not give more help, but it will cause greater danger. The role of the halogen lamp is to signal, not to illuminate As we said before, the role of automotive halogen lamps is not just for lighting. The fog lamp must first have strong penetrating power and high recognition. Secondly, the fog lamp is required to produce almost no Tyndall effect. The light will not block the line of sight in the fog, and can illuminate the near ground. This is the key to distinguishing fog lights from other lights, so fog lights can be counted as one of the active safety configurations. For example, the front fog lights of the last century were generally yellow. However, the yellow fog lamps are now rare, and replaced by relatively advanced halogen bulbs. The lighting color has also become warm white, which can also assist the vehicle in meeting the conditions of the fog lamp. Fog lights design has strict requirements, do not blindly modify Therefore, for the design of the fog lamp, there are high technical requirements for the range, angle and brightness of the light, and it is impossible to modify it at will. For example, some netizens suspected that the fog lights were not bright enough, and replaced them with xenon lamps. As a result, the road ahead of you did shine a lot, but it was easy to reach others, and the effect was similar to that of the high beam. This is too immoral. In addition, strong light will produce diffuse reflection and Tyndall effect in the event of heavy fog, otherwise the front is white and more dangerous! Ordinary LED lights are inherently defective and cannot be used as fog lamps. Some friends may ask, can the LED light source not reach the required color temperature? Is the LED light source not strong enough? What can a halogen lamp do? Can an LED light not be done? In fact, many LED lights are now color temperature adjustment, there is no problem, for example, many household lights can now color temperature. However, the problem is that the LED lamp that we commonly use is a single-crystal LED. The light passes through the powder to synthesize a single color of light, and is not emitted by the three colors of "red, green and blue" (the three primary colors can compensate for the continuity of the spectrum, explaining Too complicated, the next day is discussed in depth), so it is impossible to achieve continuity in the spectrum! And the LED light of the three-color light source is very expensive, so it is not worthwhile to use it as a fog light. Why do some cars use LEDs to make fog lights? No guess, some people will ask, why does Audi use LED lights as fog lights? Because Audi's design of integrated luminaires cost billions of dollars in research and development costs, the LED light source is concentrated by various technical means, the spectrum is not continuous, and so on, and then assembled into lamps and cars. So don't ask why Audi uses it, because it is so expensive! This is not an advertisement! KNM6 Series Moulded Case Circuit Breaker
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