What is the current of the car headlamp?
The number of watts: the general car is the original 60/55 watt bulb, the outside has sold 100 watts or even 140 watts of light bulbs, lighting effects can certainly grow, but must be installed light beam, so as not to meet the needs of current. And the car is related to the provisions of the test can not be greater than 60/55 watts, but not to meet the lighting needs, and for the change is not easy to find, so generally through the annual inspection.
Light principle: ordinary light bulbs are tungsten light, 12 volt voltage has been able to make it light, and xenon headlamps full name is HID gas discharge lamp, it is the use of positive and negative light to stimulate xenon (XENON) and rare metals Chemical reaction glow, so you will find in the HID bulb lamp there is a small glass ball, which is filled with xenon and a little rare metal, as long as the current to stimulate them to react, both will Issued up to 5000K color temperature of the light, which is not only the traditional halogen light is difficult to achieve the brightness, 5000K is actually the closest daylight color temperature, the most people feel comfortable and comfortable. In addition, because the xenon molecular activity capacity will be more lively as the use of time lengthening, so the gas discharge bulb, but will be more brighter. Because of the need to stimulate the xenon light 23000V, so the real HID gas discharge lamp, there must be a voltage ballast, 12V voltage boost to 23000V, with just the power to open the moment to stimulate the xenon to achieve bright, stable and continuous supply of xenon bulb light. Because xenon headlamps have three times the brightness output, color temperature comfort, several times the product life, about 1/2 of the power consumption and other characteristics, must be a substitute for tungsten bulb! But now the price of xenon headlamps is still very high, at least to more than 3000. Xenon headlamps are not without any drawbacks, because xenon light is brightened by the dark, so it is not suitable for frequent alternating light
Filling the gas: the earliest bulbs are vacuum, and now the basic are halogen, the so-called halogen is filled with inert gas, can extend the lamp life. And now the market there is a kind of xenon bulb, it is only refers to the filling of the gas only, as long as the filament light, the difference is not, and HID (xenon) headlamps confused!
Color temperature: ordinary car light bulb color temperature is 2400K, color temperature on behalf of the color, 2400K is yellow, silver warrior is 4300K, issued by the white, and HID (xenon) headlamps are 5000K-10000K, that is, white or even blue. White looking comfortable, but in principle, or the penetration of yellow light a little better. And car testing is also related to the provisions must be yellow, but now basically do not require, because the xenon headlamps is the original.
