LED | 12 June 2017
Functional, sustained lighting of public squares, streets and buildings - all easily possible with modern LED technology. LED lighting ensures better quality of life and provides safety. This also improves the city's image. This means that the trend towards attractive city design continues to grow. Numerous cities are having master plans drafted, which, among other things, harmonise the requirements of modern lighting and tourism.
City lighting master plan:
The trend towards attractive city design through light is gaining increasingly in significance. Lighting concepts for entire cities can be developed from so-called master plans. The city's particular lighting atmosphere and its various lighting characteristics are accentuated here. For example, the master plan of the luminaire system in certain buildings is specified and colour light and colour temperature are chosen for the lighting of various objects. Thus an interplay is produced between lighting, architecture and quality of life. Marketing objectives for the city can be supported perfectly by such master plans.
The extremely long life, the possibility of dynamic adaptation of light, the high level of efficiency and many other factors support the use of LED in urban lighting. For that reason, more and more municipalities are deciding for conversion to LED lighting.
LED improves the city's image:
Even the aesthetic shape and the individual design of modern LED luminaires improve the city's image. The following comparison is worthwhile: Traditional lamps compared to cold white light from high-pressure mercury vapour lamps, lamps with yellowish light from high-pressure sodium vapour lamps or modern LED streetlamps compared to warm white or neutral white light from light-emitting diodes. White LED light brings out the strengths of buildings, trees and streets much better at night. That is one of the most important reasons for the switch to LED in urban lighting.
LED creates quality of life:
Quality of life - for most people the most important attribute that makes a city attractive. Lighting plays a really important part in this. Light emphasizes architectural details, supports us day and night and provides safety in the streets and on the roads. LEDs enhance a city's quality of life, particularly because of their distinctly improved luminous intensity, compared to the formerly familiar high-pressure mercury vapour or sodium vapour lamp and because of the possibility of adjusting the light's emission angle precisely to the desired lighting effect.
Directional LED lighting for any urban application:
Whether we are talking about the old, historical part of a city, parks, residential areas or roads with high traffic volumes - with LED, suitable lighting is possible for any metropolitan area. Warm white LED light, with a colour temperature of approximately between 2,700 and 3,300 Kelvin, provides a friendly feeling of well-being in the old part of the city, in residential areas and in parks. On the other hand, with a high level of efficiency, LED luminaires with neutral white light provide the necessary guidance and safety on frequently-used streets and roads or on adjoining tracks.
Dynamic light adaptation:
With the help of electronic control gears (ECG), LED luminaires can be adapted in any way to the outdoor conditions. Electronic control gears in light management systems (LMS) make it possible to use time controls in urban lighting, for example. The light is thus adapted to the existing light level or the traffic density automatically and/or in stages.
The following is even more effective: Intelligent light management systems with the possibility of controlling the lighting systems centrally or by sensors. Because of their extremely high efficiency level, they are being used with increased frequency. This is a great advantage compared to earlier, purely time-controlled illumination systems, which can only be reset with much effort and can only be switched on or off.
High-power LEDs are able to produce directional light. This results in many advantages for urban lighting. As a result of directional light guidance, particular street sections and objects can be precisely illuminated. Using lighting with reflector technology also prevents scattered light. Adjacent areas are not illuminated and residents are not disturbed. Highly economical white light is thus produced, light which does not cause direct emission into the night sky and thus prevents light pollution.
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