As you know, headlights are like “eyes” of each car, so if the headlights on the car that you own have brightness not satisfy you, this article will be very helpful you. In the current market, manufacturers are applying four main headlights. They are Halogen, Bi-Xenon, LED, LASER (the most modern headlight).
One important factor when referring to lights is the color temperature of light, called K. The halogen lamps give out yellow light at a temperature of about 3,500K, while Bi-Xenon lamps are at 4.300K, LEDs and lasers for white light reach 5,500-6,000K, close to the temperature of 6.500K sunlight, you will have good night vision. Every type of headlights has its own advantages and disadvantages, so car users need to know the operational principles and characteristics of each type to choose the appropriate solution.Click to see more information . . .
This is the dominant light in the market because of long life, low price, easy to manufacture and replacement cost is only 500 thousand VND / pair of lights. In terms of structure, the light bulb is mounted in front of the parabolic reflection mirror (often referred to as the coconut shell), the role of this light is to distribute the light to the front of the car when the lights are on. Similar to incandescent bulbs, halogen lamps use tungsten filament to create light. The disadvantage of this type of light is that the light is weak, the filament has to be burned to 2,500 degrees Celsius, which results in excessive heat loss, resulting in loss of energy.
HID Headlights (Bi-Xenon)
This lamp does not use the filament to produce light as a halogen lamp but instead uses Xenon gas to glow. The characteristics of Xenon lights are very strong and unpredictable light, which can cause glare on the road if using Parabolic reflectors. That’s why manufacturers create a lens that directs the flow of light to avoid dazzling other vehicles. When viewed from outside, this lens looks like a large ball. When turned on, the light needed a lot of energy to glow for the first 5 seconds, but then the lights needed only a small amount of energy to maintain the light. This is why you see the light moving from blue to white when looking at the Bi-Xenon light on. The composition of the Bi-Xenon lamp is quite complex, and it needs a “ballast” to make the currents go high at startup, so the manufacturer recommends turning off the lights before opening the cover. The room is electrically shocked. The biggest disadvantage of this lamp is its high production cost, which is usually reserved for high-end models.
LED light has just been developed in recent years, the highlight of the lamp is the use of very small chips to light up. Thanks to this very small size, LED systems usually collect four to a dozen chips inside. Typically, the smart E-Class 2017 LEDs use 168 LEDs to illuminate. Another point is that the LED can be mounted on many different surfaces, which can be symmetrical on a circular metal pillar or evenly mounted on a flat surface, so the LED is the directional light fixture. For circular lenses and for parabolic reflectors. The highlight of the LED is the ultra-fast light-emitting period, in just a few millionths of a second, which is equal to one-fifth of the blink of an eye.
This is the most modern type of light, which is very powerful, capable of projecting 600m beyond the 300m range of LEDs but consuming just over half of the power consumed by LEDs. Although called a laser light, the laser does not have the ability to illuminate, instead, it is projected onto a lens containing phosphorus, which, when excited by laser light, emits a temperature of over 6000 K white-green.