Mosaic is a traditional luminous mosaic derivatives. Its light-emitting materials such as luminous powder, luminous powder into the mosaics made. This mosaic absorb energy during the day, at night the fluorescent light is emitted, the light emitting time normally can last ten hours or so. Toxic materials used in luminous mosaic no side effects, and therefore harmless, consumers can be assured. So what about the advantages and disadvantages of luminous mosaic ?