The “color rendering index” (CRI) of Diehl Aviation cabin illumination is very close to that of sunlight. Light quality is also reflected in the longevity of a solution like the integrated aging compensation. This keeps total costs as low as possible while a replacement is easily possible at any time. 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 jetlag.