Two times the ordinary halogen headlamps lighting brightness, power consumption is only two-thirds, as bright as the sun illumination, the service life of up to ten times the ordinary halogen lamp - — Since the early ninety s, xenon headlamps with its incomparable advantage, has become more and more the owner's first choice. Xenon headlamps greatly increase the driving safety and comfort, also help to ease people's tension and fatigue driving at night. Drivers can be found in the first, to get enough reaction time, greatly reduce the accident rate at night. Today, 30% of the world's automakers have focus: today the xenon headlamps as the original form a complete set of equipment of vehicle, in China's recent launch of the new audi, passat, buick regal, Mazda and other luxury models are equipped with xenon headlamps. At the same time, due to technical understanding of existing owners for xenon, converting the original car halogen headlamps xenon lamp has also become a focus in the market. So far, mainly on the market there are three different modification methods. HID adapted HID modified originated in Japan, since Taiwan Hong Kong and other regions into the mainland. HID conversion, is the original car headlamps of halogen bulbs to remove, change xenon bulbs ( Including the bulb holder) , equipped with xenon ballast and drilling and lead wire harness on the dust cover. H7 has launched on the market adaptation, H1, H3, H4, HB3, HB4 halogen bulbs, such as xenon bulbs, so almost all the models can be applied. This approach, however, there is a big safety problems: first, as a result of the headlamp reflector and the lens is in the original halogen bulbs and rick, after changing the xenon light source, due to the size of the xenon lamp with the original halogen bulbs, the size is different, the light emitting part must focus away from the location ( Due to HID lamp luminous department centroid position) , so new xenon light source and reflector and the matching between the lens could not achieve the original effect. Visible, although HID conversion can improve the headlamps lighting brightness, but it does not produce light regulatory requirements. Instead emerged the condenser, lose cutting line (low The light and shade as line) ( According to the ECE standard and national standard GB4599 - China 1994 7. 3. 1, should have obvious low beam light and shade as line) And no function (right in With the function of in modified HID products do have, but light is not ideal, and even do not conform to the requirements of the regulations) , and other serious negative impact, and lead to the possibility of dazzling increased by more than 100 times. Second, due to change the original car circuit, once appear quality problem, is likely to cause a short-circuit the danger of fire. Replace headlamps assembly in Europe, the law has clear provisions HID modified for illegal, only on the system of headlamp replacement - — That replace the headlamps always be regarded as legal talent, and also must at the same time equipped with headlamps cleaning device and automatic headlamp adjusting device ( In terms of economic commission for Europe (ECE - R48 ) 。 At present, although China has not yet issued a similar laws, but the Chinese national standard GB largely model and equivalent to the European ECE terms practice, probably in the future also will appear the corresponding provisions. This modified method mainly adopts the original supporting xenon headlamps, namely the xenon light source with specially designed for the lens and reflector, and therefore become one of the most ideal method of modification. At present can be modified xenon headlamps assembly models, including the passat B5, audi A6 C5, and BMW 5 series and Mercedes E - Stage series and so on. Modified this way is very convenient, only general conversion headlamps can be. The characteristic of this method is completely equipped with xenon auxiliary lamp does not change the original car lighting system, but the xenon auxiliary lamp as additional product installed on vehicles on top of the head or the corresponding position. This modification is relatively flexible, users can according to the small vehicle model and choose of oneself be fond of suitable products, choose the reasonable installation position for installation, personalized needs. Xenon auxiliary lamp is given priority to with high beam, outer diameter as small as 80 - commonly 90 mm to 200 mm, can be respectively suitable for truck, off-road vehicles, cars and other vehicles. Xenon auxiliary light pencil light type of product, can meet the special needs of highway driving and the car driving, capable of km above. However, the disadvantage is that such a method for the small vehicle bumper and the size of the grille has certain requirements, carefully measured again after be modified. From what has been discussed above, we can see the above three kinds of modified methods have their advantages and disadvantages, and in the long term will co-exist at the same time. However, with the constant improvement of relevant laws and regulations and market gradually mature, the latter two methods should be the trend of The Times. As a new era of 'security tool', xenon headlamps will soon become the mainstream of the market.