In order to ensure safe driving, you need high-quality optics. So the question arises which headlights are better – halogen, LED or xenon.
Once upon a time, LED headlights were put only on premium cars. But today good light is no longer a privilege, and these headlights are set and on cars of the average price segment. But they are expensive. Therefore, it is important to understand how justified such a difference in price is.
Halogen illumination: principle of operation
In general, the halogen works on the same principle as an ordinary incandescent lamp. Inside such a headlight, there is a tungsten filament. Its heating occurs at the expense of electricity. Also inside there are halogens – more precisely, a couple of elements from this group, usually iodine or bromine. The action of their vapors slows down the settling of the tungsten atoms; this occurs more slowly than in the incandescent bulb. These atoms move around the filament and often stick to it. Save this article for the day you get the money to recycle your old car. It will help you make the right decision. And you can recycle your car here: https://scrapcar.cash.
Halogens give off a yellowish light. They function equally well on AC and DC.
The advantages of halogen headlights:
But they also have their disadvantages. This is – high power consumption, as well as limited functionality. Adaptive light for the car using a halogen light source no one makes.
Xenon headlights: principle of operation, advantages and disadvantages
In xenon headlights, the catalyst is also tungsten, but in this case it is joined by thorium. The inner space is filled with xenon – a noble one-atom gas. Under the influence of electricity in this light bulb, a plasma arc is formed near the cathode.
Such a car headlight is characterized by a cold bright light. It is closer to daylight than that of a halogen. The brightness level is 3000 lumens. Xenon lamps come in different types – ceramic, tubular (with a long arc), short arc. The safest lamps are considered the first type. They also have electrodes close to each other, that is, they can be considered short arc. But the presence of a ceramic shell provides increased safety. The first to put such headlights began to put German automobile concerns.
The advantages of xenon lamps are:
bright light, close to daylight,
long service life,
the possibility of replacement.
However, they are also characterized by high power consumption. And adaptive light with this technology is difficult to implement.
LED bulbs and their features
Popular LED lamps have the lowest power consumption and the longest life. These headlamps use a semiconductor, which gives optical radiation close to daylight, when electricity passes through it. The device is constantly being improved, many manufacturers in the development of modern systems rely on LEDs. Adaptive light systems adjust to them.
Many believe that you have to choose LED lights as the most reliable. But in fact it is not so simple, and they also have their disadvantages: they are almost impossible to service, only the headlight assembly can be replaced. In addition, it is a complex design, it has its own control and cooling system. And that is why such headlights are expensive, and it is impractical to put them, for example, on cars Auto VAZ. So when choosing, you need to once again weigh all the arguments for and against.