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Spark LED Lighting Solution for Tunnel Project
July 23, 2010... Lighting inside a tunnel has unique design challenges. A person entering a tunnel in car quickly travels from outside with an external light source, to inside a tunnel.
As Spark LED points out, in the entrance of tunnel a changeover portion (from clear to dark) should be made ensure people can see things clear by light changing. For the exit of tunnel, the conforming period is very short, normally within 1 second, so no need to do other dispose.
Tunnel lighting is an necessary part of tunnel building because even in the daytime, the whole tunnel need electrical lighting inside. Noise, exhaust fumes, vibration, etchant gas are part of the environment, and any tunnel lighting must be able to withstand all of these.
Spark LED created the fixtures for a tunnel in Roma, Italy. The LEDs used in the fixtures boast an efficacy of 114-122 lm/W at 3.2 volts and 320 hA. 56 LEDs within each fixture consume a total of 72.6 Watts. Within the tunnel that spans 736 meters, 103 tunnel lights consume 7374.8 W. Source/Type: Solid State Lighting Design LED Lighting News - News - Staff reports See the Current Industry News Summary
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