The stretch film can be assembled very quickly, with minimal inconvenience (site). The stretch film can be monochromatic, or printed, with floral, abstract, spatial, decorative motifs, to choose from a wide range of variants. Optical fibers can be inserted in the stretch film, they produce the STAR SKY starry sky effect. The star ceiling is produced by the RGB or RGBW LED projector (with separate white LED) remotely controlled, and the set of optical fibers. The price of the work will depend on the ceiling surface, the length of the fiber optic wires and the density of the light points (the amount of optical fiber). The projector - the light source is calibrated according to the number of wires in the resulting connection, the wattage of the projectors represents their consumption and not the brightness power. The 3w projector illuminates as strongly as the 45W one, only it can receive only 50-100 fiber optic wires, the 2x45W projector illuminates 800 fiber optic wires / each head, so a total of 1400-1600 wires. If the work is larger, DMX projectors with digital control are used, they will change the colors, the programs in synchrony, from a single remote control.