INTELLIGENT POWER SOURCE, CAPABLE OF DIGITAL COMMUNICATION VIA THE POWER LINE, suitable for powering LEDs (8) of lights, and formed by an electronic device having: an input unit (3) connected to the alternating current line (230 V); a power regulator (4); power transformers (5); and an output unit (6) to which the power supply line (7) for the LEDs (8) is connected. In addition, the intelligent power source comprises a CPU microprocessor (10) and a PLC modem (11) both disposed in a compact assembly and linked to the input unit (3) and to the power regulator (4), said CPU microprocessor (10) and PLC modem (11) being used to control the entire operation of the intelligent power source, namely start-up, power, synchronization, temperature, voltage and the other functions of the source (1), as well as protection, communications with other sources, and storage of parameters and data.