Light, not luminaires: ERCO's credo has always been the guiding principle of the lighting concept at Creditplus Bank AG Berlin. The luminaires are seamlessly and strikingly integrated into the architecture. Their number has been reduced to a minimum: With a purposeful luminaire arrangement, light is only used where employees truly need it - ensuring energy is applied consciously and efficiently. Skim recessed luminaires were used for ambient lighting, with zonal increase in illuminance levels achieved through paired arrangements in the ceiling design. The lighting is tailored to architectural activities, offering varying lighting levels instead of uniform light carpets. The quality of stay is significantly enhanced by the lighting. Bright rooms are created through wallwashing with linear Compar recessed luminaires. Vertical lighting not only enhances the perception of brightness but also improves visual comfort in offices and provides better spatial orientation.