Wall luminaires available in white or black three-ply opal glass. The open glass is directed towards the mounting surface. Part of the light is reflected from the wall softly and uniformly. The interplay with the free-radiating light produces a pleasant level of visual comfort. The luminaires made of black glass also have three glass layers. The outer layer of matt black glass makes this precious material impervious to light and jet black in appearance. A fascinating spectrum of colours is produced if illuminated, ranging from jet black to discreet dark blue.