Along with the high-tech lighting engineering performance which distinguishes it, Koinè enjoys yet another innovative element in the sound-absorbing version. The reflector is a felt cap (60% recycled) which not only has an important decorative role, but also allows increased acoustic comfort in the vicinity by reducing the time of sound reverberation. An aluminium portion inside covers the surfaces and contributes on one hand to holding the felt in place, and on the other hand to dispersing the heat of the light source.