Artificial lighting plays an essential role in spatial quality. Badly thought-out lights can disrupt an architecture project and even bring harmful effects to occupants’ health; while a well-balanced luminotechnic project can highlight positive aspects of the surroundings and make it much more enjoyable. Generally, however, projects tend to be too rigid and not in-tune with the flexibility of contemporary spaces. In addition, a badly made lighting decision can be complex and expensive to rectify. For example, electrical points in slabs, linings or walls are not easily modified if the distribution of a space is changed. At most, when this is resolved with hanging or free-standing lamps, we end up having to deal with bothersome electrical wires throughout the space.