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.