Halogen lamps are made of tungsten wire. Halogen lamps can also operate at a higher temperature than incandescent lamps. Their brightness and efficiency are also higher. However, at this temperature, ordinary glass may soften, so halogen bulbs need quartz glass with higher melting point.

Whether the front fog lamp or the rear fog lamp is not on, it means that the bulb has been burnt out and must be replaced. But if it doesn't break down completely, it's just that the brightness is reduced, the light is red and dim, and it can't be taken lightly, because this may be the precursor of failure, and the reduced lighting capacity is also a major hidden danger for safe driving.

The fog lamp is divided into front fog lamp and rear fog lamp. The front fog lamp is generally bright yellow, and the rear fog lamp is red. The light line of the front fog lamp sign is downward, and that of the rear fog lamp is parallel.

Motorcycle lamp is divided into direction lamp, headlight, tail lamp and brake lamp. The direction lamp is the most important equipment to inform other vehicles of their own trend, so we must confirm whether the direction lamp is normal or not before driving. The sound frequency of the relay can be used to judge whether the direction lamp is normal.

Xenon lamp and halogen lamp have advantages and disadvantages respectively. From the perspective of the effect of xenon lamp + lens on the ground, even the asphalt particles on the ground can be clearly observed; however, the combination of halogen + reflector may be weaker.

Features of xenon lamp: Xenon lamp can output brightness of up to 3500lumen, while general halogen bulb can only produce brightness of up to 1000lumen.

LED lamp, also known as light-emitting diode, has high brightness, low power consumption and almost no burning problem. The service life of LED lamp can reach 60000 to 100000 hours.

The service life of the xenon lamp on the automobile is determined according to the total time of the use process when the lamp is not on. Xenon lamp is also 10 times longer than halogen lamp in service life, and the accumulative service time can reach about 3000 hours.

The service life of halogen lamp in automobile is based on the fact that the bulb is damaged or not on. No matter what the reason is, not on proves that the life of the bulb has reached the limit and cannot be used. Halogen bulb is the most common type of automobile.

Halogen lamps began to be used in lamps in the 1970s. In 1962, Haila took the lead in introducing halogen lamps. Its light-emitting principle is very similar to that of ordinary incandescent lamp. Tungsten wire of halogen lamp has higher melting point than that of ordinary incandescent lamp.

Precautions when using halogen bulb for automobile headlamp: the halogen bulb is made of quartz material, which has a serious defect, that is, if you touch the bulb with hand or cloth and then light it up, the bulb will lose luster and cannot be restored.

Halogen bulb, referred to as halogen bulb or halogen lamp. The halogen gas such as iodine or bromine is injected into the bulb. At high temperature, the sublimated tungsten wire will react with halogen chemically. After cooling, the tungsten will solidify on the tungsten wire again, forming a balanced cycle and avoiding premature fracture of the tungsten wire.