base plate 12 can serve as a shield for light emitted by the second light emitting diodes 7 in addition an infrared diode 22 may be mounted flush in the base plate 12 so that a flashing optical pattern can be generated for identification of friend or foe for members of a flight group the reflector element 19 and module housing 14 are mounted on the first holding part 10 by screw connections 23 opposite the direction of flight 3 a cooling body 24 having a plurality of disc shaped cooling ribs 25 is connected to the lamp compartment 4 which serves to cool the lamp compartment 4 and the electronic components the electronic components are coupled to the cooling ribs 25 by suitable heat conducting materials a control circuit 26 is provided for controlling the basic light module 6 on the one hand and the second light emitting diodes 7 on the other hand which control circuit 26 has a step down converter 31 which converts an onboard d c voltage of 28 v into a lower d c voltage a constant current source connected downstream from this step down converter 31 applies a supply current amperage 27 as a function of a current demand of consumer elements basic light module 6 second light emitting diodes 7 because the basic light module 6 in a first branch 28 and the series connected second light emitting diodes 7 in a second branch 29 are connected in parallel a constant voltage is applied in branches 28 29 in the event of a failure of individual.