The starry sky ceilings and the optical fiber lights are used in  arhitectural applications for shapping, accents, lighting areas or to obtain the STAR SKY effect on the ceiling. They could  be mounted in rigips or plasterboard but also in stretch foils of the STRETCH or BATISOL type. The optical fiber mounted in diffcult or impossible areas to access after completing the work, have the avantage that they don`t burn as halogen light does or other light sources. The light points can have variable sizes, by useing optical fibers of different sizes. An application worthy of takeing in consideration in architectural applications is lighting the green houses, the optical fiber can lead just as well the sunlight from autside, inside the building. So we can light the interiors and the basements with indirect sunlight.