I am sure Altai used to sell emergency lights with built in PIRs that only
came on both with power off and pir seeing movement.
CPC used to have them, please tell me I'm not dreaming.
Brian

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In article ,
George
Miles wrote:
I have several emergency lights over the stairs etc, which light up when
the mains fails.

But if they only last 4 hours, and the power trips when i'm asleep at
midnight, and fire breaks out at 6 a.m. or i need to get up, they will
be flat.

So recommendations for emergency lights with longer lasting batteries
please?

George

you probably won't find any. The standard specification for emergency
lights is 3 hours.

yup

that's what ours here are rated for

the PP's scenario is in the realms of fantasy

the use case is that it's the fire that burns out the electrical circuits
that causes the emergency lights to be required

2 * unconnected multi year events, both occurring on the same night is not
catered for