The definition of motor vehicle license light

License plate lights at night or when the sky is darker, and lane position with other small lights to illuminate the license to open lamp, generally used in conjunction with the police to track and monitor the work at night.  License plate light installation is very simple, the shape of the light bulb screws installed in the car on top of the license, played the role of lighting and decoration. If you accidentally through a red light, or lead to traffic accidents, it will be an important help in the police raids. Accordance with relevant regulations, all vehicles driving at night, you must open the rear license lights. License plate lamp brightness, night vision normal within 20 meters must be able to see the license number. According to requirements and small license plate lights to light with a switch.

License plate light category

License plate light by the use of materials sub-divided into: 1, gas license plate light; 2, LED license plate lights. Divided by the base model to be divided into: 1, C5W; 2, W5W; 3, H5W.

Described by material classification

License plate light gas
Gas vehicle license plate light, which uses gases such as halogen, a common license plate lights are W5W gas, there C5W, there H5W, but W5W of use than more. Gas vehicle license plate light, mature technology, low price, but will produce radiation, which contains mercury, the shell is made of glass, easily broken, leading to pollution of the environment.

LED license plate lights

LED license plate lights, that the use of the material is LED. Made by the LED license plate light, no radiation, no pollution, long life, theory of 5 million hours, that is, the car is scrapped the period do not change light bulbs. However, LED license plate lights expensive, so the popularity of its use of the formation of a certain influence. In developed countries, has been in extensive use of LED license plate lights, and in the country, still relatively small.

Described by the base classification

C5W
C5W, power is 5W, bulb diameter is 10.5mm, length is 35.0mm, cap is expressed as SV 8.5, made of light bulbs can be called two-point or double-ended light bulb lamp, made of license plate lights can also be called dual-tip license plate lights.

W5W
W5W, power is 5W, bulb diameter is 10.29mm, length is 26.8mm, head expressed as W2.1 × 9.5d. W5W can be called straight or flat plug, can be described as wedge-shaped lamp made of light bulbs.

H5W
H5W, power is 5W, bulb diameter is 9.0mm, total length is 33.0mm, head expressed as BA 9s. Bulbs can be described as made of spherical light bulb.  

prev：Automobile brake lights(2011-04-01)

next：Automotive lights(2011-03-30)