Rooms are illuminated with soft light through the 20 mm thick satin crystal glass with a diameter of 190 mm. The installation surface is also illuminated indirectly through the edges of the glass. The luminaire glass and housing are connected by an invisible, integrated glass thread. These robust luminaires are operated with highly efficient fluorescent lamps, providing economical and energy-saving light. Minimalist light design elements are used as components of the interior design. Protection class IP 65.