I. What is the difference between xenon headlights and led headlights
Both xenon headlights and led headlights are the mainstream light sources for car headlights, and xenon headlights are high pressure The gas discharge lamp is a heavy metal lamp. By filling a variety of chemical gases, such as xenon and other inert gases in the anti-ultraviolet crystal quartz glass tube, and then through the supercharger, the vehicle’s 12-volt power supply is instantly increased to 23,000 volts. Under high voltage, The xenon gas is ionized and creates a light source between the poles of the power supply.
LED headlights are light-emitting diodes, and their basic structure is an electroluminescent semiconductor material chip, which is cured on the bracket with silver glue or white glue, and then connects the chip and the circuit with silver or gold wires The board is then sealed with epoxy resin around it to protect the inner core wire, and finally the shell is installed, so the shock resistance of the LED lamp is good. The difference between xenon lamps and led headlights is mainly reflected in the following aspects:
1. Shape
As a car light, the most significant feature of LED lights is that In fact, it is composed of a large number, small size, and high brightness of lamp particles, which are generally combined into a certain shape, such as a lamp line or a large overall area. Xenon headlights are generally relatively independent individuals as car lights. Of course, there are also some models that use bi-xenon headlights.
2. Brightness
LED lights have an advantage in luminous efficiency, but LED lights are bright enough, but their lighting distance is limited compared to xenon headlights , generally less than 10 meters. The xenon headlights are also considered bright, but they are slightly inferior to LED headlights. Although the specific lighting distance is not calculated, it is farther than traditional LED headlights.
3. Energy saving
Under the same power LED lamp and xenon headlamp, the LED luminous efficiency is higher, although its ability to withstand high temperature is slightly weaker, The focusing effect is also slightly worse than that of xenon headlights, but there is no doubt that LED lights are more energy-saving and environmentally friendly.
Second, which is better between xenon lamps and led headlights
1. Advantages and disadvantages of xenon lamps
(1) Advantages: The brightness is greatly improved, and the tungsten-free structure has a longer life. If there is a fault in use, the xenon gas will not go out instantly, but will gradually dim until it goes out, which allows the driver to be able to drive. There is time to deal with headlight failure.
(2) Disadvantages: poor concentrating, and because it is too bright, it is easy to shake the driver of the opposite vehicle. Many xenon headlights will be equipped with lenses to solve this problem; poor penetration, in heavy fog and The effect of ice and snow weather is average; delay effect, it takes 2-4s to light up, which is not very convenient when driving at high speed.
2. Advantages and disadvantages of led headlights
(1) Advantages: long life, generally up to tens of thousands or even 100,000 hours; high efficiency, Low energy consumption; high light quality, environmentally friendly products, basically no radiation; LED structure is simple, the internal bracket structure, surrounded by transparent epoxy resin sealing, good shock resistance; no delay in lighting, fast response speed of lighting; suitable for Low voltage operation; small footprint.
(2) Disadvantages: high cost, lamp body material, fan and driver will affect the heat dissipation effect; poor heat dissipation treatment will easily lead to light decay, affecting the service life of the lamp; there are certain difficulties in the design of light patterns.
In general, xenon lamps and led headlights have their own advantages and disadvantages, and users can assemble them according to their own needs and preferences.
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