An aircraft beacon device for a wind power installation having a nacelle and a tower supporting the nacelle is provided. The aircraft beacon device includes a plurality of beacon lights, a central control unit for individually controlling the beacon lights, and a transmission system having an energy distribution system for individually supplying electrical energy to the beacon lights to operate the beacon lights. The transmission system has a data bus system for individually controlling the beacon lights, and the data bus system carries control data between the central control unit and the beacon lights.