Abstract: A lighting system of the kind having walls defining an enclosure, one or more display faces and electrical light sources located within the enclosure. Adjacent to individual light sources there are affixed light diffusers, interposed between the light sources and the display faces so as to prevent light rays emanating from the sources from directly reaching the display faces, but allowing light rays reflected from internal surfaces of the walls of the enclosure and from the diffusers, to reach the display faces.