There are some 3 hour 8W emergency lights on sale at Screwfix for £12 at the
moment.

I have always wanted to fit one of these above the CU in the garage as my
garage lights are on the same lighting circuit as the hall and the most
common light to blow in my house, and trip the breaker was the hall light,
thus plunging the garage into darkness ready for not being able to reset the
MCB...... I fixed by changing the MCB to type C that was not prone to
tripping when a bulb blew, but not necessary now as I have changed to CF
bulbs.

"Stephen" wrote in message
...
Hello,

I was thinking of fitting an emergency light near the CU. It's under
the stairs, so there's no daylight to see by when an RCD or MCB trips.
I see they use an 8w bulb. How bright are these? I know a 7w cfl is
supposed to be equivalent to a 40w filament bulb. Are these lights as
bright as a 40w bulb? I'm wondering whether it could be used as the
only light in the room or whether I need a "normal" light in addition
to the emergency one?

Thanks,
Stephen.