power system of one or more lighting modules LED, Light Set combines and power METHOD

The system (8) for feeding one or more light modules (6a, 6b, 6c), light emitting diode includes a power supply (14) adapted to be connected to the or each lighting module (6a, 6b , 6c) via an electrical connection (16a, 16b, 16c) and means (22) for detecting a direction of connection of the or each lighting module (6a, 6b, 6c). The detection device (22) comprises, for the or each lighting module, means (50) for injecting a current instruction, first means (52) for comparing with a first voltage threshold a voltage measured on the corresponding electrical connection (16a, 16b, 16c) following the injection of the setpoint and means (54) for reversing the polarity of the lighting module (6a, 6b, 6c) when the measured voltage on the electrical connection (16a, 16b, 16c) corresponding is greater than or equal to the first voltage threshold. When the voltage measured on the corresponding electrical connection (16a, 16b, 16c) is greater than or equal to the first voltage threshold for the forward and reverse polarities of the lighting module (6a, 6b, 6c), the first comparison means ( 52) are adapted to increment a reference value, the first voltage threshold for the next comparison or said voltage with the first voltage threshold.