Abstract: Systems and methods are provided for deriving power for an external device from the power source of a fluorescent light. The power source includes a fluorescent ballast electrically connected to the connectors of a light fixture for receiving an input voltage and for converting the input voltage to a lamp voltage suitable for powering a fluorescent lamp. The fluorescent ballast may be modified to include an output line that outputs a voltage for powering the external device to a power port. The power port may be mounted on or near the fluorescent light. Alternatively, the power port may be integrated within a housing that contains one of the connectors of the light fixture. The ballast may be further modified to include an output line for extracting network data and control signals from the power line carrier signals on the input voltage.

Abstract: Methods and Apparatus are provided for a power supply capable of being operated directly from fluorescent lighting fixture and capable to functioning properly when supplied by conventional 60 cycles per second (cps) “Core and Coil’ fluorescent lamp power supply (ballasts) as well as ‘Electronic’ or ‘Solid State’ ballasts functioning at frequencies from 20,000 cps to as much as 40,000 cps, without adversely affecting normal lighting fixture operation.