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The basic knowledge of the composition and modification of the headlights

The basic component of the assembly is the lighting group. The lighting group consists of three parts: the light source (bulb), the reflector and the light transmitting mirror. Automobile lamps can be divided into two main categories: lighting and signal lamps.

Lamps and lanterns include: headlamp (near light and high beam), front fog lamp, reversing lamp, side lamp and so on.

Signal lamps include: position lights, gallery lights, steering signals, brake lights, rear fog lamps, license plates, and reflectors.

Among them, the front fog lamp and reversing lamp are both illuminating lights and signal lamps.

1. headlamp

Headlamps, commonly known as headlamps, can be divided into gas lamps (gas discharge lamps) and electric lamps (filament lamps). The lights are also divided into incandescent and halogen lamps. At present, the main bulbs used in China are headlamps, low beam lamps and high beam lamps. Close light is a near distance light lamp that is used when there are other road users in front of a vehicle, which does not cause the other side to dazzle or discomfort, that is, the lamp used when the vehicle is in the car; the long light lamp is a long distance lighting fixture used when there is no other road user in the preface.

In the past, there were four types of headlights (headlights): H1, H3, H4, H7 and so on. * * * * car headlights are mostly H4; European cars are H1, H3, H7, D2S/R; the car lights of the United States are HB3 (9003), HB4 (9004), HB5 (9005).

2. front fog lamp

It is mainly used to improve road lighting in fog, snow, rain or dust. To prevent the glare of the head-on vehicle driver, the front fog light beam is projected closer to the ground than the light beam.

3. other lamps and lanterns

The position lamp, that is, the general light, is mainly a lamp that shows the existence and width of the vehicle; the brake lamp, the brake lamp, is observed from the rear of the vehicle, indicating the lighting of the vehicle being brake. At present, the rear fog lamps, which are required to be installed, are mainly observed in vehicles under the heavy fog condition, which makes the vehicles easier to see. Because of its penetrating power, it can largely reduce vehicle rear end accidents and prevent traffic accidents.

HID xenon lamp classification

According to the arrangement of the light bulb:

One, the original factory matching HID xenon headlamp: refers to the xenon lamp which has been designed and equipped in the automobile manufacturing process. For example, the Audi A6 new model and the new Mazda M6 are the original xenon headlights for the near light light with the lens, such as the Volkswagen type of the long light light with a lens and a lens with a near light lamp for the original xenon headlights (pictured).

Two, after after sale of the HID xenon lamp: the original car is not equipped with xenon headlights in the purchase of car, is after the purchase of a xenon lamp after the purchase of HID, such as Mazda M6 part of the original car does not have xenon headlights, so it can be modified by the H1 xenon lamp to realize the xenon lamp application, improve lighting and driving drive. Drive safely.

Classified according to the structure of the bulb:

The original xenon headlamp system is usually made of PHILIPS and OSRAM xenon bulbs with HLA stabilizer. The xenon bulb is usually D2S or D2R.

The modified xenon headlamp model is made in accordance with the original car halogen lamp model, so the model is rich in models, including H1, H3, H4, H7, H8, H9, H11, H13, 9004, 9005, 9006, 9007, ordinary light bulbs, H3 for fog lamps, H4 as far and near light, H7 (mostly near light bulbs, but also light bulbs, but also There is a light for a long light, such as AUDI A6).