A legal firm based at the IHZ (Internationalen Handelszentrum) in Berlin requested shadowless lighting for the open plan areas in order to counter worker fatigue. Konzept Licht provided the planning and execution of the rectangular and oval illuminated ceiling elements, which despite very limited possibilities for recessed installation, emit homogenous light and through the hinged frame construction, are also easily serviceable. The illuminated elements are fitted with T5 fluorescent tubes and can change from warm white to cold white tones. The artificial daylight programming ensures optimal lighting for the workstations.