As part of a modernization project, a staff restaurant and associated kitchen from the 1970s were to be architecturally renovated. An essential part of the design task was to introduce daylight by constructing a new light well. However, for structural reasons, only a confined shaft geometry with small windows could be realized. The daylight intake would be minimal, with few positive effects and poor views. Instead, designers began work on an electric lighting-based approach that would simulate daylight and support the circadian rhythms of the occupants. Collaborating with experts on occupational health and safety, the team determined the specific wavelengths and programming of the luminous wall, simulating daylight’s variations, dynamics, color, direction, and intensity. The floor-to-ceiling panorama window wall shows a folded image of the river Rhine. When illuminated, the wall emulates a relation to the outdoor environment. Behind the glazing, linear RGBW LED luminaires are concealed in the floor. Linear luminaires in the ceiling simulate daylight during mid-day hours. The artificial panorama window provides human centric illumination in a daylight deprived space. As one judge said, “This project succeeds where many have tried.”