EXTRA-LOW VOLTAGE OUTDOOR LIGHTING SYSTEM, LUMINAIRE, POWER SUPPLY AND ASSEMBLY AND METHOD OF PROVIDING OUTDOOR ILLUMINATION

摘要

An extra-low voltage outdoor lighting system (1) comprising a system power supply (5) and individual extra-low voltage outdoor luminaires (2). The power supply supplies an extra-low output voltage (V_out) at a supply output of the system power supply (5). The output voltage has a constant component and a periodically reversing polarity. The luminaire (2) comprises a light source (22). At an input thereof a supply voltage (V_sup) is received. Rectifier circuitry (23) between the luminaire input and the light source rectifies the supply voltage to generate a, unipolar, rectified voltage and provide the rectified voltage to the light source (22). An electrical conductor (4) connects the supply output (53) to the luminaire input, for providing electrical power from the supply output to the luminaire input.