FontanaArte Sillaba wall or ceiling light The FontanaArte Sillaba wall or ceiling light, which was designed by the well-known designer Piero Castiglioni for FontanaArte, is beautiful. The wall or ceiling lamp for low voltage and mains voltage is a jewel in any living room, office, hallway or public building. Several lamps together look like a string of lights. It has a simple design and consists of a shade made of heat-resistant, sandblasted glass and a frame made of highly heat-resistant technopolymer (plastic). It is available in three sizes for low voltage and one size for mains voltage.