1、 Suit measures to local conditions
To talk about which LED headlights are more suitable for your car, the first question is to see what brand and model your car is? Different cars have different LED headlights.
1. Does your car need decoding?
For Volkswagen Sagitar, jeep, ix35 and other vehicles, it is not feasible to install ordinary LED headlights. Special LED headlights with decoding function must be installed. If you casually install an LED headlamp, the car dashboard will have a fault light alarm, which will affect the radio, or lead to the lights not on, flashing, etc. What's more, it will burn the driving computer. Don't be careless.
Therefore, for vehicles such as Sagitar and Jeep, those with decoding function and special vehicle are suitable.
2. Does your car have a lens?
If there is a lens, is it a passing beam lens or a double beam lens? For the headlamp assembly with lens, the lens will block part of the light. Therefore, the LED headlamp with higher brightness should be selected.
If the original car does not have a lens, we should choose the LED headlamp with "low beam tangent function".
What is "tangent"? The so-called "tangent" refers to that the left side of the low beam shape is low and the right side is high, which will not affect the sight of the oncoming drivers when they meet.
Remember, if your car headlamp assembly has no lens, to upgrade and install the LED headlamp, you must select the LED headlamp with "tangent function of low beam". If you install an ordinary led, when you meet the car, it will make the driver of the opposite car unable to open his eyes, which is a great threat to driving safety.
3. Is your car suitable for installing LED headlights?
Not all cars are suitable for installing LED headlights. The LED headlamp is larger than the halogen bulb of the original vehicle, and the bulb installation position of some automobile headlamp assemblies is very small, which is only enough to install the halogen bulb of the original vehicle, and the LED headlamp can not be installed at all.
For example, the installation space of BYD G5 low beam is very small, which is not enough to install LED headlights; Moreover, the dust cover of the original car is connected with wires, which is different from the installation logic of LED headlights and cannot be installed.
2、 Don't blindly pursue high power
Because of the advantages of light-emitting principle, automobile LED headlights don't need too high power to be very bright at all. As we all know, halogen lamps rely on tungsten wire to emit light. After power on, the tungsten wire is heated to incandescent state to emit light. Electric energy is converted into heat energy and then into light energy; In the process of converting into light energy, about 90% of the heat is converted into infrared waves that have no effect on lighting, and only about 10% of the energy is converted into visible light, and the electro-optic conversion efficiency is only about 10%.
LED headlights are "light-emitting diodes". Light emitting diode (LED) is a semiconductor electronic component that can convert electrical energy into light energy.
Therefore, "bright and power-saving" is the most significant feature of LED lamps. The LED lamp only needs about 60% of the power of the original halogen lamp, and the brightness is more than 3 times that of the original halogen lamp. The power of LED lamps is generally twenty or thirty watts, which does not need the high power of halogen lamps of 55W.
3、 Choose the headlight color temperature according to personal preference
Now there are two main color temperatures of mainstream automotive LED headlights on the market: 6000K pure white light and 2500K ultra yellow light. 6000K pure white light, such as noon sunlight, has good color rendering, clear illumination path and is not easy to visual fatigue;
2500K ultra yellow light has strong penetration, which is more suitable for rainy and foggy days.
If there are relatively few rainy and foggy days in your area, choose 6000K pure white light.
If there are many rainy and foggy days in your area, you can also choose "two-color temperature LED headlights". You can use pure white light in sunny days and yellow light in rainy and foggy days.
4、 Accurately select the headlamp model
Common models of automobile headlights include H1, H3, H4, H7, H8, H9, H11, 9005, 9006, 9012, etc.
Whether halogen lamps or LED lamps, all bulb interfaces are produced according to unified specifications; As long as the headlamp model corresponds, the interface must be the same. Therefore, before upgrading and installing LED headlights, you should first find out what the headlamp model used in your car is. If the headlamp model is wrong, it must not be installed.
5、 LED headlights with "radiator + fan" cooling mode selected
There are three main ways of heat dissipation for mainstream automotive LED headlights on the market. The first type: radiator heat dissipation, the second type: copper strip heat dissipation, and the third type: radiator + fan heat dissipation. By far the most efficient way to dissipate heat is the third.
7、 About whether the dust cover should be sealed
Generally speaking, the original dust cover can be used to upgrade and install the automobile LED headlamp. Today's LED headlights are installed without damage. There is no need to change the line or open a hole in the dust cover; Take down the halogen bulb of the original car and replace the LED. It's as simple as changing the halogen bulb of the original car.
In addition, there are special LED headlights for special vehicles, such as Volkswagen Suteng, Haima S5, trumpchi GS4, Baojun 560, Baojun 730, etc. all of them are equipped with special dust cover and sealed very well,
