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Generally speaking,The electrical light source on the road light source on the street lamp, which may be classified according to its principle, framework and overall performance, might be classified in accordance to its principle, structure and overall performance. Classification of electrical energy by transformation:

(1) thermal radiation light source for the use of electric latest to heat the object to the extent of the incandescent light source. Such since the utilization of a wide array of incandescent and halogen tungsten lamp.

(2) a source of light emitted by a gasoline (or steam) by a gas discharge light source. The light source is usually classified in two different ways. But generally this kind of light source has the advantages of large luminous efficiency, extended service life, and so on.. (a) according for the discharge medium and divided into: gas discharge lamp, mainly utilizing the gasoline discharge, such as xenon lamp, neon lamp, and so forth.; metal vapour lamps, mainly working with metal vapor discharge, made by metal vapor light, such as mercury lamp, sodium lamp, metal halide lamp. (b) during the sort of the discharge can be divided into: glow discharge lamp, the lamp by Zhenghui glow discharge column produces light and discharge characteristics is cathode cathode electronic specific heat emission is considerably (CCFL), this type of lamp ordinarily want to pretty large voltages, this kind of as neon; arc discharge lamp, the lamp largely use is arc discharge column to provide light and discharge traits is cathode likely drop is smaller sized (is actually a sizzling cathode lamp). This type of lamp typically will need particular starter and line to do the job appropriately, such as fluorescent lamp, mercury lamp, sodium lamp and so on..

According to other traits from the discharge light source according for the style of filling gas (or steam) and air stress. Such as high stress mercury lamp, minimal strain sodium lamp, higher stress sodium lamp, metal halide lamp and so forth.. In any situation, the present frequently utilized electrical light source for city street could be the most important metal halide lamp, high-pressure mercury lamp, high-pressure sodium lamp and incandescent lamp. The yield of metal halide lamp is modest, however it would be the advancement route of LED street lamp.