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How to Choose the Right Led Headlight for Your Car? (Part 1)

Mar. 20, 2020

For ordinary riders, how to choose the appropriate automobile LED headlights is a headache. Because of the limited knowledge, experience of car lights and other factors, many friends and friends are "Zhang Monk-Puzzling" in the face of the many styles of LED headlights on the market.

Automobile LED headlights manufacturer with many years of vehicle repair experience, and relatively in-depth research on automotive LED headlights, to provide riders with several references:

First. Tailoring to local conditions and tailoring

To talk about which LED headlight is more suitable for your car, the first question still depends on what brand and model of your car? Different cars have different LED headlights.

1. Does your car need to decode?

If it is a Volkswagen Sagitar, Jeep, ix35 or the like, it is not possible to install ordinary LED headlights. Special LED headlights with decoding functions must be installed. If you casually install an LED headlight, there will be a fault light alarm on the dashboard of the car, which will affect the radio, or cause the lights to turn off, flicker, and so on. It will even burn the driving computer.

Therefore, for cars such as Sagitar and Jeep, those with decoding functions and special cars are suitable. Volkswagen Sagitar needs to install LED headlights for special cars with decoding function.

2. Does your car have a lens?

If there is a lens, is it a low-beam lens or a two-beam lens? Headlight assembly with lens, the lens will block part of the light, therefore, choose a higher brightness LED headlight. How to choose a brighter LED headlight?

If the original car does not have a lens, it is necessary to choose the kind of LED headlights with "low beam with tangent function".

What is "tangent"? The so-called "tangent line" refers to the low-beam light shape on the left and low on the right, which does not affect the sight of the driver coming across the vehicle.

Remember, if your car headlight assembly has no lens, to upgrade and install LED headlights, you must choose the LED headlights with "low beam with tangent function". If an ordinary LED is installed to go up, the driver will not be able to open his eyes when he meets the car, which will greatly threaten driving safety. Low beam tangent standard effect: left low and right high, does not affect the sight of the driver coming across.

3. Is your car suitable for LED headlights?

Not all cars are suitable for LED headlights. The size of the LED headlight is larger than the halogen bulb of the original car, and some car headlight assemblies are installed in a small position, which is only enough to install the halogen bulb of the original car, and they cannot be fitted with LED headlights.

For example, BYD G5 low beam, the installation space is very small, there is not enough space to install LED headlights; moreover, the original car's dust cover is connected to the electrical wiring, and the LED headlight installation logic is different, can not be installed.

Automobile Led Headlights

Automobile Led Headlights

Second. Don't blindly pursue high power

Automotive LED headlights are already bright because they do not require too much power because of the principle of light emission. Everyone knows that the halogen lamp is illuminated by tungsten wire. After being energized, the tungsten wire is heated to the incandescent state to emit light. Electric energy is converted into thermal 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. Electro-optical conversion The efficiency is only about 10%.

The LED headlights are "light emitting diodes" that emit light. A light-emitting diode (English: Light-Emitting Diode, LED for short) is a semiconductor electronic component that converts electrical energy into light energy.

Light-emitting diodes are produced using the “injection-type electroluminescence principle”, which directly converts electrical energy into light energy, avoiding the conversion of electrical energy into thermal energy and then light energy like halogen lamps, skipping the step of converting into thermal energy, and the efficiency of electro-optical conversion Very high, up to 60%.

Therefore, "bright and energy-saving" is the most significant feature of LED lights. LED lights only need about 60% of the power of the original car's halogen lamp, and the brightness is more than three times that of the original car's halogen lamp. The power of LED lamps is generally 20-30 watts, and the high power of 55W of halogen lamps is not required at all.


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