INK is the solution to overcome the problems caused by pre-existing incomplete electrical systems or environmental limitations: a patented LED lighting system that includes multiple items working from the same concept. The flexible cable can be mounted as stretched system to enlight arches, beamed and ceilings of value, or can be inserted inside ceiling/wall modular extrudes to create a branched path on the surface. The cable acts as a conductor on which it is possible to hook the various compatible devices, allowing the adoption of various lighting solutions, even in places where it is not possible to install light sources on the ceiling.