We have supplied this effect for installation in scores of staircases all over the world with drops up to 75 meters because of the spectacular results and low cost. The only conditions to install fibers this way are a long uninterrupted voids and suitable weights at the end of the fibers to ensure verticality. The fibers are scored at intervals to promote light leakage with tiny points. In this example the visual impact was maximized with subtle color changes.
HBF401, high performance 1mm bare fiber, scored at intervals with a sharp knife to promote light points.
MDI102, 150W Modular Discharge Illuminator with metal halide lamp and sequential 6-color dychroic change.