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Mend Lights After Power Cut

Why do my security lights come on after a power cut?

I have two security lights, triggered by PIR sensors.
They work fine most of the time. However, if we have an interruption to the power supply, then power is restored, they stay on permanently.
I seem to recall that the solution is to switch them off and on again (once or twice, I'm not sure), then they'll start operating as normal. However, I'm trying this at present, and it doesn't seem to be working.
Any suggestions?

JohnsyG
November 2009
to reset security lights,switch them off and count to ten then switch back on,thats it to reset them.

john
January 2010
hi ya when the power has been off, then on again sometimes the lights go into a testmode, they should only stay of for the time duration they are set on when they are operated from the pir. then after a while they should reset themselves and go back to ususall.

ljsuth
December 2009
It is my understanding that the lights go through a self-test sequence after a supply interruption. I think it takes about 10 minutes.

Harry
November 2009
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