News

City road lighting light source mainly in 250W, 400W high pressure sodium lamp, metal halide lamp and mercury lamp, a regular 8 meters to 12 meters bar. Newly installed 12 m pole 400W high-pressure sodium lamp with section type lamp as an example, according to the measured, in the clear night light illumination of 70LM illuminance at the central value, far beyond national standards for lighting, electric resources enormous waste. In some areas to save electricity to take the wrong lever lighting method, electricity is saved, was contrary to the lighting design of the basic requirements, the formation of the band's ills.

In recent years, part of the city to improve the low pressure sodium lamp color of the cold light source, metal halide lamp mixed lighting, visual conditions improved significantly, but there are still common electric resource depletion and high-voltage sodium lamps and metal halide lamps to the power supply voltage requirements high (+ 5%), in present municipal lighting power supply voltage, 220V volatility is large, this also indirectly affect the service life of the high-pressure sodium lamp and metal halide lamp, increase maintenance costs of related. Also high pressure sodium lamp metal halide lamp due to physical properties, general in the use of around 2000 hours, flux attenuation to 70%, lighting effect contrast with the initial design, affect the overall lighting design objective demands with the application of electronic technology and rapid development and gradually mature, and in practice, especially for the fact that some economically developed regions of the power resources shortage, since nearly one paragraph of period, in the energy-saving emission reduction of the slogan of the appeal, the localities have launched LED road lighting project.

No comprehensive cost-effective high frequency electrodeless lamp gradually enter into the field of application, can yet be regarded as a new generation of road lighting source with the rational choice from the point of view of the history of the development of electric light source, no electrodeless lamp and LED lamp belong to the fourth generation electric light source, the former belongs to the arc discharge, the latter is solid luminescence. Make a comparison between the performance of the non pole lamp and the LED lamp and the index list. High frequency and LED with the same as the green light source, they have a number of similar characteristics, but in the field of application. LED light bulb is mainly used for landscape decoration, subtitle advertising, such as lighting, single body power is small; the high frequency of the lamp is mainly based on the work place and outdoor public lighting, single power.