| 摘要 |
Light-emitting means for use in conventional lampholders for fluorescent tubes, wherein at least one LED is provided as light-emitting element and the light-emitting means comprises an identification which identifies whether a low-frequency AC voltage or a high-frequency AC voltage is present as operating voltage at the light-emitting means. This identification is used to detect whether conventional control gear (CCG) or electronic control gear (ECG) is used to operate the light-emitting means. After identification of one of the two operating modes, the supply voltage is produced for light-emitting elements either by means of the rectified operating voltage (CCG) or by means of an inductive high-frequency transmission (ECG).
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