Arrangement comprising an operating device for at least one lamp and an electrical circuit, the operating device comprising at least one energy transmission element which is designed as an inductive element, the inductive element being at least one part of an LLC transformer of the operating device, the energy transmission element being designed such that a primary-side input alternating current in the energy transmission element generates an alternating magnetic field which induces a secondary-side output alternating current which is supplied to the at least one lamp, and the electrical circuit having an inductive coupling element which is arranged in a magnetic or electromagnetic stray field of the energy transmission element, characterized in that the electrical circuit is arranged externally to the operating device so that a current is induced in the inductive coupling element by the magnetic or electromagnetic stray field which is now used to supply voltage to the electrical circuit, that the inductive coupling element is designed as at least one conductor loop or in the form of an antenna that has a suitable construction, that the operating device comprises a housing and a housing cover, that the electrical circuit is arranged outside the housing, the housing being designed to be permeable to magnetic fields and to have low attenuation at least in the region of the inductive coupling element, and the housing cover having a marking on the surface which faces outwards after the housing cover and the housing have been assembled, in order to designate a marked region on the housing cover so that, when the inductive coupling element is arranged on this marked region, the inductive coupling element is designed to draw a particularly high stray power from the magnetic or electromagnetic stray field. the inductive element being at least one part of an LLC transformer of the operating device, the energy transmission element being designed such that a primary-side input alternating current in the energy transmission element generates an alternating magnetic field which induces a secondary-side output alternating current which is supplied to the at least one lamp, and the electrical circuit having an inductive coupling element which is arranged in a magnetic or electromagnetic stray field of the energy transmission element, characterized in that the electrical circuit is arranged externally to the operating device so that a current is induced in the inductive coupling element by the magnetic or electromagnetic stray field which is now used to supply voltage to the electrical circuit, that the inductive coupling element is designed as at least one conductor loop or in the form of an antenna that has a suitable construction, that the operating device comprises a housing and a housing cover, that the electrical circuit is arranged outside the housing, the housing being designed to be permeable to magnetic fields and to have low attenuation at least in the region of the inductive coupling element, and the housing cover having a marking on the surface which faces outwards after the housing cover and the housing have been assembled, in order to designate a marked region on the housing cover so that, when the inductive coupling element is arranged on this marked region, the inductive coupling element is designed to draw a particularly high stray power from the magnetic or electromagnetic stray field.