In the vast majority of outdoor lighting applications, […]
In the vast majority of outdoor lighting applications, LEDs have proven their advantages. For tunnel applications, the point source integrated in the solid-state lighting device is particularly matched. In this article, Dale Kane, Lumileds' global market and business development manager, talked about the specific challenges posed by the tunnel and how to solve the demanding lighting requirements by combining LEDs and lenses.
The words "darkness" and "grayness" aptly describe the illumination of many road tunnels in the world. So when you see a bright tunnel without shadows or black spots, you may wonder why all tunnels do not have such good lighting conditions. In fact, new tunnels in many parts of the world have shown that well-designed LED tunnel lighting can help drivers easily and quickly adjust vision, minimize maintenance, and save energy while improving light quality.
We will discuss some projects to prove the value of LED-based tunnel solid-state lighting (SSL). There are two main considerations for whether tunnel lighting should be upgraded to LED. Municipalities usually focus on life cycle costs and light quality.
The total cost of ownership of public lighting depends on several factors such as illuminance, power consumption, equipment costs, installation costs, maintenance costs, luminaire dimensions, and the expected life of the luminaire. Although other quantifiable factors can also be considered, it is mainly the decision of the competent authority.