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Compact Fluorescent Flashing.

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My friend still has a collection of compact fluorescent lamps. He has a coiled glass style one in his outside light fitting. It is time switch controlled. It was working well until.....wait for it.............wait for it. Today as it was getting dark and before it had switched on, it was gently strobing dimly. It was regularly lighting dimly and then turning off etc. I suppose the frequency was about 3 Hertz.


Has this strobing anything to do with me connecting up his main earth terminal to the official previously unused U.K.P.N. P.M.E. earth terminal? (All main bonding is in place).


Or, did I just not notice this strange strobing before?


Z.
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    The one above my bed does it, but I can see it only when my eyes have become dark-adapted.


    Try measuring the voltage across the pins with the switch in the off position. It may be surprisingly high - of the order of tens of volts. You can also measure the current which flows when the switch is off. IIRC, I found about 1 mA.
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    The one above my bed does it, but I can see it only when my eyes have become dark-adapted.


    Try measuring the voltage across the pins with the switch in the off position. It may be surprisingly high - of the order of tens of volts. You can also measure the current which flows when the switch is off. IIRC, I found about 1 mA.
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