The challenge
This historic building in Vienna is guaranteed to have been a source of laughter for a long time, and that has nothing to do with the emergency lighting. Originally, the ceiling was fitted with outdated, emergency-supplied light bulbs. However, the decision to convert to modern LED luminaires presented a number of challenges. The lighting control of the existing luminaires no longer worked for the combination with emergency luminaires and the general lighting had to be separated from the emergency lighting. However, this turned out to be more difficult than expected, as the switching points for the lighting first had to be found.