With the diversification of car functions, headlights gradually become an optional configuration, from the previous single halogen to the development of more now xenon and LED. Chinese consumers on the product of the recognized standards have always been price-oriented, expensive is good! As for the practicality, we rarely consider. Halogen, xenon and LED these three different types of headlights What are the functional differences? How to consider when buying a car? Xiao Dongjun came to talk to you today.
Halogen lamp
Halogen lamps are often dubbed the "candle light", and its luminous principle and incandescent, like by heating tungsten wire to the incandescent state, in order to achieve lighting effects. However, the halogen lamp is based on the incandescent addition of some halogen elements (bromine, iodine, etc.), can alleviate the loss of tungsten wire at high temperatures. Therefore, the halogen lamp compared to incandescent lamp life longer, brightness is higher, but the common shortcoming is the high energy consumption.
Halogen lamps generally appear in the low with the models, you can see that its manufacturing costs relative to xenon and LED headlamps to low. But because of its warm color temperature, so the ability to penetrate stronger. This is why, many models of low beam with xenon, and high beam and fog lamps or the use of halogen light source.
Xenon lights
Xenon is a rare gas that produces ionization at ultrahigh pressure and emits light at both poles of the power supply. Therefore, the principle of xenon lamp and halogen light is not the same, xenon lamp no filament, the lamp only xenon and other inert gas, through the ballast to 12V car voltage increased to 23000 volts, and then ionization luminescence.
The grade of the xenon lamp Coilover Suspension depends on the ballast, the good ballast starts fast, is not susceptible to temperature, and the voltage is stable. Relative to the halogen lamp, the xenon lamp energy consumption is only two-thirds, and the brightness is stronger, long working life, generally can reach 3000 hours.
In short, the xenon lamp due to high heat, often light is not bad, shade has been discolored. Moreover, the light penetration is one of the short board, headlamp cleaning function is because the application of xenon lights and LED headlamps only appeared.
LED headlamps
In the era of normalization of Nokia, when the high-end mobile phone flash are using xenon light source (strip-shaped flash). I do not know if you have found that when your phone to open the flashlight function, sinking xenon lamp is not bright, light is next door sinking LED fill light. The reason is very simple, that is, xenon lamp heat is too high, this smart instrument is difficult to meet its cooling requirements, so now the phone slowly out of the xenon lamp, not it is not good, is better off, after all, Is the closest to the sun's light source.
Pull away, back to the topic. The emergence of LED headlamps to make up for the largest short xenon lamp. Due to technical and cost constraints, the early years of LED light source has been used in brake lights and day running lights. In recent years, LED headlamps gradually appear in some high with models. Long life, fast lighting and low energy consumption characteristics, it has to replace the momentum of xenon lamp.
LED headlamps shortcomings and xenon lights almost, high manufacturing costs, weak penetration, but it is very low heat, relative to the xenon lamp is almost negligible.
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