What are the advantages of automotive LED headlights? What about the downside?

Headlights are as important as human eyes, and the headlights of a car are not only a reflection of the image of the car, but also closely related to safety.

Nowadays, there are more and more types of headlights, and as an important electronic component of the automotive safety system, it is particularly important to choose what kind of headlights! Some people think that the lights are just for the decorative features, as long as they are eye-catching. Others think that headlights are just a must-have, and they are good to be practical and cheap.

LED stands for Light Emitting Diode (light-emitting diode), which is a solid-state semiconductor device that can convert electrical energy into visible light.

The biggest advantage of LED headlamps is energy saving and environmental protection; Its energy consumption is 1 20 times that of halogen lampsIn addition, the low cost and long life also crush the xenon lamp; The life of LED lamps from some manufacturers can reach 100,000 hours;

Advantages of LED headlights:

1. LED luminous flux of 3000lm, super bright, rain and fog, safer driving in the dark.

2. LED instant start, overcome start, overtaking blind spot, car owners, pedestrians are safer.

3. LED luminous efficiency is high, the efficiency is several times that of other lights, saving electricity, the battery is used longer, the owner is more money-saving, energy-saving and environmentally friendly.

4. The LED color temperature is easy to control, stable, and can keep the left and right lights consistent.

5. LED has a long service life, the time is 50,000 hours, and the light life is extended by at least 5 years.

6. LED overcomes the problem of xenon lamp need to be decoded to avoid the hidden danger of burning the car.

7. LED is mercury-free and other heavy metals, green, energy-saving and environmentally friendly.

It can be seen that compared with halogen lamps and xenon lamps, LED mainly performs high brightness, long service life, more energy-saving and environmentally friendly. Energy saving and environmental protection are the future development directions of automotive applications.

Now the European Union has legislated to ban the use of halogen and xenon lamps, and all LED lamps will be replaced by LED lamps by 2018. LED has high electro-optical conversion efficiency, low working voltage, lossless life of repeated switching, small size, less heat, high brightness, durable and durable, stable beam concentration, and no delay in start-up, but the initial cost is relatively high. But LEDs look more handsome and have a better illumination width, which will make many people prefer it.

Advantages: long life, generally up to tens of thousands or even 100,000 hours, high light quality, environmentally friendly products basically no radiation; 2. High efficiency and low energy consumption, LED light source can directly produce the color required by automobile lamps without color filtering, without loss, and the power utilization rate is as high as 80%; 3. The disadvantage is that the heat dissipation is not good, the heat dissipation treatment is not good, and it is easy to fade, and the ** grid causes ordinary cars to not be able to install LED lights.

Advantages: 1. Long life, generally up to tens of thousands or even 100,000 hours. 2. High efficiency and low energy consumption. Disadvantages: 1. High cost, 2. It is difficult to popularize LED headlights, and the heat dissipation is not good, and the heat dissipation treatment is not good, and it is easy to fade.

The advantages are environmental protection, long service life, bright light, and high temperature resistance. The disadvantage is that the cost is much higher than that of ordinary lights, and the heat dissipation is not good.

The main advantages of automotive LED headlights are higher brightness, longer life, lower power consumption, and faster start-up. The disadvantages are mainly that the heat is larger, and the heat attenuation is very serious, and the effect is poor in rainy and foggy weather.

Advantages: high efficiency, low energy consumption, very energy saving. The service life is long, generally up to tens of thousands or even 100,000 hours. Disadvantages: high cost, nearly 300,000 for an LED reversing light. And LED car headlights have poor heat dissipation.

1. Energy saving: It is converted into light energy directly by the light-emitting diode, which is only equivalent to 1 10 of the traditional lamp compared with the ordinary automobile bulb, which can better save fuel consumption and protect the automobile circuit from being burned out by excessive load current.

2. Environmental protection: There is no ultraviolet and infrared rays in the spectrum, neither heat nor radiation, small glare, and the waste can be **, no pollution does not contain mercury, it can be safely touched, and it is a typical green lighting LED source.

3. Long life: there is no loose part in the lamp body, there is no filament light burning, thermal deposition, light decay and other shortcomings, under the appropriate current and voltage, the service life can reach 8-100,000 hours, more than 10 times longer than the traditional light source.

Fourth, high brightness, high temperature resistance. The temperature of the light-emitting element is low, and there is no requirement for the high temperature resistance of the surrounding materials, and the ordinary headlights can easily exceed 200 degrees for 10 minutes.

Fifth, small size. The designer can change the lamp mode at will, so that the car can be varied. Automobile manufacturers favor LEDs, which is completely determined by the advantages of LED itself. The shape is highly malleable, leaving a lot of room for design.

6. Good stability and strong LED seismic performance: resin encapsulation, not easy to break, easy to store and transport.

7. High luminous purity, clear and vivid colors, no need for lampshade filtering, and the light wave error is within 10 nanometers.

8. Fast response speed, no hot start time, can emit light within microseconds, and the traditional glass shell bulb has a second delay, which can prevent rear-end collision and ensure driving safety.

9. Energy saving: Low power consumption and fuel saving.

10. The color temperature is closer to daylight, which is better visually.

Disadvantages of LED Car Lights:

First, LED lights are more expensive than ordinary lights.

Second, the popularization of automobile headlights is difficult, the heat dissipation is not good, and the heat dissipation treatment is not good, which is easy to fade, which affects the service life of the lights. The biggest problem of high-power LED lights is heat dissipation, cheap ones are not heat-resistant, and heat-resistant ones are not cheap. Although LED lights have a long lifespan, there is another factor that affects the life of LED lights is the voltage instability.

Therefore, the requirements for the electronic control components of LED lamps are high, and a large part of the cost is added.

Third, there is no industry standard, the quality of the product is uneven, and the same product is produced by 1-2 times with different LEDs.

Fourth, the luminous light type of LED lamps is not quite the same as halogen, and it is not realistic to directly replace halogen bulbs, because most of the reflective bowls of cars are designed according to halogen bulbs. If you load the car, you have to reinstall the lamp bowl or lens, which adds a lot of cost.

LED Lamp Principle:

LED is a semiconductor that can convert electrical energy into visible light, which changes the principle of tungsten luminescence of incandescent lamps and the luminescence of three primary color powders of energy-saving lamps, and uses electric field to emit light. According to the analysis, the characteristics of LED are very obvious, long life, high light efficiency, no radiation and low power consumption. The spectrum of LEDs is almost entirely concentrated in the visible light band, and its luminous efficiency can reach 80 to 90%.

1. Long life, generally up to tens of thousands or even 100,000 hours. It has been argued that if LEDs are used for future car lighting, there will be no need to replace the lamps throughout the life of the car.

2. High efficiency and low energy consumption. The LED light source can directly produce the red, amber and other colors required by the automotive lamps without color filtering, without loss, and the power utilization rate is as high as more than 80%.

Car LED headlights disadvantages:

1. The cost is high, taking LED reversing lights as an example, an LED reversing light is nearly 30 yuan, and a bulb ** is only 3 yuan, most of which is the cost of LED lights. **As a result, ordinary cars cannot be equipped with LED lights, and the market cannot be promoted.

2. It is difficult to popularize LED headlights, and the heat dissipation is not good, and the heat dissipation treatment is not good, and it is easy to fade. Affect the service life of the lights.

The advantages and disadvantages of automotive LED headlights are as follows: 1. Long life, generally up to tens of thousands or even 100,000 hours, if the future automotive lighting uses LED, the entire car service life will not need to replace the lamps; 2. High efficiency and low energy consumption, the LED light source can directly produce red, amber and other colors required by automobile lamps without color filtering, without loss, and the power utilization rate is as high as 80%; 3. The disadvantage is the high cost, taking LED reversing lights as an example, an LED reversing light is nearly 30 yuan, and a bulb is only 3 yuan, most of which is the cost of LED lights.

The advantages and disadvantages of automotive LED headlights are as follows:

1. Long life, generally up to tens of thousands or even 100,000 hours, if the future car lighting uses LED, the entire car service life will not need to replace the lamps;

2. High efficiency and low energy consumption, the LED light source can directly produce red, amber and other colors required by automobile lamps without color filtering, without loss, and the power utilization rate is as high as 80%;

3. The disadvantage is the high cost, taking LED reversing lights as an example, an LED reversing light is nearly 30 yuan, and a bulb is only 3 yuan, most of which is the cost of LED lights.

1. Energy saving and environmental protection: The energy consumption of LED lamps is 1 20 years old for halogen lamps.

2. Low cost and long life: The life of the LED lamp of the well-known factory can reach 100,000 hours, which means that basically your car can't be driven, and it is still on.

3. High brightness: the brightness is much higher than that of halogen lights, and the warning lights used as brake lights are no pressure.

4. Low-voltage safety: LED, the first original used in electronics, only needs a DC voltage of 12V to be lit, and there is no need to worry about the voltage of xenon more than 20,000 yuan.

5. Instant lighting: no longer need xenon lamps will be lit again", use at any time.

6. Small size of a single LED: This is the favorite of designers, and it can be spelled into a variety of favorite looks.

At present, the application of LED headlights on automobiles is very common, so what are the advantages of automotive LED headlights?

1. It is very energy-saving and environmentally friendly. The LED on the car is not only energy-saving, high luminous efficiency, low energy consumption, but also environmentally friendly, in line with the current social requirements.

2. The size is small and does not take up space. A single LED lamp is small in size, and can be arranged and combined through different light groups to achieve different visual effects.

3. The quality is durable and lasts for a long time. Due to the relatively simple structure of LED, it has strong adaptability in anti-impact and anti-impact, and the quality is reliable, which improves its durability.

4. Long service life. The normal LED light can be used for about 50,000 hours, which is enough to support the long-term use of the car, reduce the frequency of replacement, and make it more comfortable and worry-free.

5. Fast response. The time to turn on the LED headlights is about a microsecond, which is very conducive to the use of taillights and turn signals, which can give a longer reaction time to the oncoming cars, thereby reducing the probability of traffic accidents.

The advantages and disadvantages of automotive LED lamps are as follows: 1. Its advantages are long life, generally up to tens of thousands of hours or even 100,000 small game ruined guesses, high efficiency, low energy consumption, LED light source does not need color filtering, can directly produce red, amber and other residual colors required by automotive lamps, no loss, and the power utilization rate is as high as 80%; 2. The disadvantage is that it is difficult to popularize LED headlights, the heat dissipation is not good, and the heat dissipation treatment is not good, which is easy to fade, which affects the service life of the lights; 3. There is no industry standard, the product quality is uneven, the light type design is a little difficult, and it is not suitable for long-term lighting.