The XT-A line is a series of LED office luminaires that is outstanding due to a specialized development in LED lighting technology, OSA*. OSA is a patented lighting grid which gives light a brilliant appearance and realises the full performance potential of the LEDs being used. The system is characterised by a high efficiency and an above average glare reduction at the lamp head (between 620-1500 cd/m² at 65° - depending on model). Brilliant white light with a high colour rendering and a neutral white light colour (3500 Kelvin, CRI 85) guarantees a high level of light acceptance from the user and significantly improves the quality of light within the office. A constant light regulator and motion detector further increase efficiency and comfort. With lightdim connect (swarm function) offered as an option, a module can be integrated into the luminaire which enables intelligent communication between the luminaires without interfering with the buildings technology. Lightdim connect allows the formation of a number of independently operating luminaire groups on one floor. Floor to floor or cross-group communication can also be achieved. Lightdim connect allows you to create sustainable, effective and efficient lighting concepts.