Blowing bulbs

That they have both run a total of about 1000 hours would be the most likely ;-)

Mains transients and/or infant mortality on the replacement bulb.

Were they spotlights or normal incandescents? I find a spotlight failure is more likely to bring down the lighting circuit rcd. I don't think I have ever seen it happen for a normal bulb blowing.

Are you saying a bulb blew and 24 hours later the replacement blew, or that two existing bulbs running from the same switch blew within 24 hours of one another?

Mike

Used to happen to me in our last house every time a bulb went.

Jonathan

Ooo, lots of things here. If both were of the same make then it might be coincidence, but there are far more mains spikes these days it seems. Inductive load being switched perhaps? Obviously if a switch is actually pulsing them on and off it will shorten life but I'd imagine the switch would die very soon, escpecially with them being made of naff plastic these days.

Brian

I was going to suggest they were bith made by Tesla, whos bulbs blow short circuit most of the time. Dodgy bulbholders can overheat connections of course but then then normally arc and die open circuit.

Brian