For suspended ceilings, two types of lighting devices are specially produced, these are point and modular. It should be borne in mind that the sizes of modular lamps must correspond to the sizes of the installed panels, this is necessary for the complete concealment of electrical communications. Panels come with various shapes of edges, so it should correspond to the selected type of lighting system. Suspended ceilings are also divided into curved and flat. Curivoline ceilings can often be found when planning modern interiors. Their main purpose is to ensure smooth transitions in the system of multi -level stretch ceilings. In Russia, such systems are made only, exclusively to order and this causes their high cost.