At first, this looks like just yet another of the many cycle paths in Assen. A normal cycle path with normal lighting on it to increase the feeling of social safety after dark.
Nothing special at all ? Take a look at the sign.
There is currently a trial going on with several different types of LED street lighting.
The sign tells how these lights use 30% less energy and reduce light pollution.
In this case, the lights have a greenish tint. They use two colours of LED, green and red, meaning you can make out colour quite well. They do a good job of lighting the path.
Also note that they are more directional than the lights which came before them. This means less light pollution.
It's all part of the strive for energy efficiency locally. Assen is commited to be carbon neutral by 2020. Many Dutch cities have made similar pledges.
This photo shows a different cycle path, just a few hundred metres from home, which has the same greenish LED lights. I took this photo on my way to work.
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