To provide a lighting system capable of reproducing a plurality of lighting conditions by arranging three filters between four white light source devices and four optical fiber bundles, and connecting them to a power source capable of regulating the white light sources.

Four white light sources 1 are arranged, and the first end part of an optical fiber bundle 2 formed of a plurality of strands is situated within the lighting axis of each lamp. The end part of strands 3 opposed to the lamp 1 is fixed onto a panel. The lamp has a blue, a yellow and a red filters or an ultraviolet ray cut filter 5 having a magnet filter holder 4. The filter is formed of a thin layer two-color filter. The lamp 1 is connected to a step-up electron transformer 6. A correcting step-up transformer of 14V-105V can be used. The transformer 6 supplies power to the lamp 1 and a blower system 7. Each light source is controlled by a graduator 9. The graduator 9 has a remote control part 10 having a variable resistor, and can be regulated through a cursor 11.