LED used in the five unique advantages of the urban landscape lighting

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Light source for night led light panel there are many in the choice of light source, we should consider from the results, performance and cost up. Compare the cost of the solution, not just the price of relatively light, but also the whole lif e of the economic analysis, because some of the efficient, long-life light source, although the higher prices, but the use of the reduction in the number, operation and maintenance cost reduction, economically and technically reasonable.

Night lighting in the traditional light source, such as incandescent and halogen point light, good color; but the luminous efficiency is low, life expectancy is relatively short, and therefore rarely been used. Floodlight lighting is high pressure discharge lamps, such as high-pressure mercury lamp, high pressure sodium and metal halide lamps, these light sources power is larger, you can achieve large area floodlighting. However, the common drawback of these light sources, light will take some time to stabilize after the light work; Moreover, if the lamp accident off, need to restart the lamp to fully cool. In addition, these lights is not easy to achieve the dynamic effects of light and color changes, if together with the filter, the light color changes can also be achieved, but this will greatly affect the efficiency of the system.

As an emerging force in the light, the LED light-emitting very different from traditional light sources. It is the use of electrons and holes in the semiconductor PN section composite luminous. Different luminous way the LED and conventional light sources are essentially different, it has its own unique characteristics.

First, LED volume is small, a single high-power LED chip size is generally only 1 mm2, coupled with the outside of the packaging materials, the diameter of an LED is usually only a few millimeters, multi-chip mixed light LED integrates multiple LED chips, size slightly larger. High degree of flexibility in the appearance of the lighting design, LED lamps need to be made the size of point, line or surface light source, according to the characteristics of the building structure to custom lamps to implemented as well as see the effects of light but not light. Modern building more and more mining multi-glass wall and other new material, which makes the traditional outside lighting for ways to gradually replaced as the transmission way of lighting, LED lighting as the transmission an excellent choice, and help reduce the problem of light interference and light pollution.

The second LED color is rich, monochromatic incident light. Monochromatic LED beam of monochromatic, which is determined by the LED chip emitting principle, the use of different luminescent material, you can get the monochromatic light of different colors, in addition, on the basis of the blue chips, with yellow phosphor, you can get different color temperature white LED, or by the red, green, blue three monochromatic LED chip package to an LED which mixed light of the optical design to achieve shade.

Third, LED s long life, fast response, you can repeatedly switch. High power LED s life expectancy under normal working conditions, more than 50,000 hours, LED response quickly In addition, we repeated switch operation without the life or performance of the harmful effects of the LED. This is very different from traditional light sources. Ordinary incandescent lamp switch repeatedly, its life expectancy drop; ordinary fluorescent lamps, each switch will cause the loss of electrode emission materials, frequent switching can lead to a rapid decline in the life of the lamp. High-pressure gas discharge lamp, repeatedly switching the electrodes of the same will light a very negative effect, but this type of light source can not warm boot, that is, the light goes out, be cooled by a certain time before they can start again . Therefore, some lighting effects in terms of the need to repeatedly switch operation, the LED has a unique advantage.

, LED light color of the fast variety of changes. As noted above, the red, green, and blue monochrome LED chips together, will be issued to the three colored light mixed light, you can get white light. If we are red, green, blue three-chip control, you can change the ratio of three colored light in the optical output, in order to achieve the changes of the entire pieces of LED output light color. As a result, an LED is like a palette, can be deployed depending on the needs of the different colors of light, which is the traditional light source can not be done. LED response speed is fast, easy to control, so you can achieve rapid light color, variety of changes, we can use this feature of the LED s, constructed a number of dynamic effects.

Fifth, the LED can be used to build a variety of patterns. commercial led lighting small size, solid structure, and short response time, we can build with LED graphics; then these graphics to be combined in order to achieve certain design effect. Now, in the streets of the city, businesses and stores, we ca n see a lot of flat pattern built by the LED or three-dimensional graphics, patterns and graphics can be very compelling results. In addition, the LED large-scale centralized control, the entire building s exterior as a dynamic screen display.