Principle of illumination
The xenon lamp is illuminated in a UV-cut UV-resistant quartz glass tube filled with a variety of chemical gases, most of which are Xenon and iodide, and then passed through a booster (Ballast). The DC voltage of 12 volts is instantaneously boosted to a voltage of 23,000 volts, and the helium electrons in the quartz tube are excited by the high-voltage amplitude to generate a light source between the two electrodes. This is called gas discharge. The white super-strong arc light produced by helium can increase the color temperature value of the light, similar to the white sun light. The current required for HID operation is only 3.5A, the brightness is three times that of the traditional halogen bulb, and the service life is longer than the traditional one. Halogen bulbs are 10 times longer.
Component
HID xenon lamps are generally composed of a lamp head (Xenon bulb), an electronic ballast (also called a ballast, a voltage regulator, etc.), a wire group, etc.:
First, the lamp holder: If you look closely, you will find that the HID xenon lamp head has no filament, and the current is generated between the electrodes, which causes the collision of the helium molecules to produce brightness, and there is no problem of the tungsten wire being blown;
Second, the electronic ballast: using the DC voltage of the battery 12V, after a series of conversion, control, protection, boost, frequency conversion and other actions, generate an instant 23000V ignition high voltage to ignite the lamp head, and then maintain 85V after lighting The AC voltage, the starting current is about 8A, and the working current is about 4A;
Third, the line group: generally made of flame retardant material, by increasing the cross-sectional area of ​​the power line, improving the current passing ability, ensuring the normal operation of the HID xenon lamp, part of the H4 model xenon lamp with relay line set for work control .
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