A luminaire system with unlimited possibilities for the creation of three-dimensional structures thanks to a combination of larger and smaller versions as well as the classic colors of black and white and different mounting heights. To maximize the potential of TRIANGLE it's preferably used in large open areas such as entrances, receptions or other open social areas. The extruded aluminum profile with an asymmetrically mounted microprismatic or opalized diffuser gives the luminaire a unique look. The adjustment of the luminaire suspension height is tool-free.