LED Light Flashing

Yes it is when switched on. Usually they are fine for 10-15 minutes. I have had the covers off for a while now so that hasn’t helped.

I may try some new bulbs then. At least that would hopefully rule out one potential issue.
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Have you tried reversing the tube from end to end, is there any markings on the tube regarding the supply end
Yes I did. They don’t seem to be labelled with a specific end, but yes have tried both ways.
The only thing then that i can suggest is someone testing the voltage at the fitting, some tubes like that are only rated at 220 to 240 volt a lower voltage could affect there operation, it seems unlikely, to have 2 faulty tubes, unless as Eric says the heat has affected them, though it appears that the fitting and tubes are compatible.
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Thanks for all the advice. I have just ordered one new bulb, not too much wasted if it doesn’t work. I’ll also try get hold of a voltage tester to see it measure at the fitting.
New bulb did not fit, despite being (apparently) the right size.

I will try get the voltage tested then see where to go from there.

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