The thing that makes this mine project very unique is that they are very interested in trying and using new technologies.
VegaMining sold the concept of using the strips not only for ilumination, but also for communication!
The concept at each beginning and end of a given tunnel was to use RGB LEDs so that the mine could be able to change the colour.
GREEN: the tunnel is OK to be accessed
RED: the tunnel is not to be entered, under any circurmistance