These glowing tiles by Lucedentro are a great choice for sci-fi enthusiasts. Lucedentro is a well-known brand name from Italy that specializes in photoluminescence to shed some light on creative and fresh ideas. Photoluminescence or simply PL is the ability to naturally absorb electric or solar light, and as soon as the lights go out the photo-luminescent materials, i.e. tiles, glow in range of colours. PL can be incorporated into the production of many different materials including wax, glass, plastic and ceramic. This way any bathroom will shine. Regardless of whether glowing or not, these sexy mosaic tiles are completely safe.