Schott OPALIKA Milchoberfangglas generates a light that is similar to natural sky lighting: it optimally diffuses the light with hardly any shadows. The double-layered glass is made with a polished clear layer on top of a white flashed opal layer of glass. In addition, the fixtures have a very low profile, while providing a substantial amount of light. From the Schott website: The right lighting can make a decisive contribution to how comfort able we feel indoors. Using OPALIKA by SCHOTT, you can achieve diffused lighting similar to skylight with very little shadow. Unlike individual spotlights, OPALIKA distributes the light evenly, creating a pleasant atmosphere.