An airport lighting installation, with - functional elements, such as lamps, displays, sensors, monitoring elements, etc., as well as with - transformers (4, 4'), - supply lines, - decentralized energy controllers, - energy converters and - a centralized controller, wherein power is supplied to the functional elements (2, 2', 2") with the supply lines via the transformers (4, 4'), which have a galvanic separation, wherein the operating function of the functional elements (2, 2', 2") can be controlled via the central controller, and wherein a respective one of the decentralized power controllers, one of the transformers, and one of the energy converters are allocated to one or a group of the functional elements (2, 2', 2"), wherein each of the decentralized energy controllers is set up to provide an electrical form of energy required by the respective functional element by means of the respective energy converter via controls of the centralized controller, wherein the commands for the decentralized energy controllers are transmitted via the supply lines (3, 3') of the power supply, and tapped or injected on the primary side of the respective transformers (4, 4'), characterized in - that in order to provide the respectively required electrical form of energy, specifically direct or alternating current varying in frequency or curve modulation as well as varying in currents and voltages for operating the respective functional element (2, 2', 2") based on its design, a respective one of the transformers (4, 4'), a respective one of the energy converters and one of the decentralized energy controllers are combined into a universal supply, and - that each of the universal supplies has an insulation barrier that induces both a galvanic separation of an energy supply part (15, 15') of the universal supply and also a galvanic separation of a controller part (16, 16') of the universal supply, so that there is no bridging from the respective primary sides of the energy supply part and controller part to the respective secondary sides of the energy supply part and controller part of the respective universal supply. - functional elements, such as lamps, displays, sensors, monitoring elements, etc., as well as with - transformers (4, 4'), - supply lines, - decentralized energy controllers, - energy converters and - a centralized controller, - that in order to provide the respectively required electrical form of energy, specifically direct or alternating current varying in frequency or curve modulation as well as varying in currents and voltages for operating the respective functional element (2, 2', 2") based on its design, a respective one of the transformers (4, 4'), a respective one of the energy converters and one of the decentralized energy controllers are combined into a universal supply, and - that each of the universal supplies has an insulation barrier that induces both a galvanic separation of an energy supply part (15, 15') of the universal supply and also a galvanic separation of a controller part (16, 16') of the universal supply, so that there is no bridging from the respective primary sides of the energy supply part and controller part to the respective secondary sides of the energy supply part and controller part of the respective universal supply.