The fiber optic light kit is composed of the fiber optic light engine and fiber bundle. In some kits, the end fittings are included. The fiber kit provides a complete starry effect solution for some common small-sized ceilings. The fiber bundle has a defined number, diameter, and length of fiber strands, which have been pre-cut and assembled into the fiber connector, ready for installation. As such, the clients do not need to configure the solutions themselves as they can install the fiber strands directly after getting the package. The fiber bundles could also be customized with mixed fiber strands of different diameters, and lengths, according to the actual needs.