The “color rendering index” (CRI) of Diehl Aviation cabin illumination is very close to that of sunlight. Light quality is also reflected in the durability of a solution like integrated aging compensation. This keeps total costs as low as possible while easily allowing for a replacement anytime it is necessary. Specially coordinated algorithms ensure that every possible hue can be realized simply with software controls. The importance of “human-centric lighting” continues to grow and it affects the chronobiological rhythm of humans. In an aircraft cabin this can be used to increase the well-being of passengers, reduce the fear of flying and reduce jetlag.