Common flush mounting boxes always have been a bulky, disfiguring device in any environment. Thanks to the new concept designed to integrate the distribution boxes and lighting equipment, the device proposes a unique solution to meet the needs of any furniture solution and offers the possibility to arrange the systems everywhere, without disturbing with its own presence the harmony of the environments. The perfect flatness with the wall around them offers a real revolution of installation, ensuring the SOLUTION to the problems of distribution of energy or concealment of equipment into houses, hotels, shops. The exclusive composability system offers an infinite range of combinations and multiple possibilities of use for hydraulic or other uses (telephone towers, user sorting and everything you want to hide). The mounting of junction boxes is identical to that of standard one, but the result is very different, the device disappears, the others remain like the unaesthetic standard of a past time. It declines in 3 basic measurements: 196x152x70 base derivation, same standard depth as the common derivation 200x124x100 and 312x200x100 derivation composable system, deeper than the common derivation cassettes.