"Mark Carver" wrote in message
...
I've got three Low Energy lamps (20 watt models). All of them audibly tick
at a
rate of about 2Hz when switched off in any ceiling lamp socket in my
house.

I've used a DVM (20 Meg ohms) to measure L-N, N-E, L-E voltages and
there's only a
few mV indicated across any combination. Killing the lighting MCB kills
the
ticking. Any ideas what's going on ?

I've noticed something similar in one type of LE lamp. After being switched
off, it flashes weakly & briefly, once every 30 seconds or so, for about 30
minutes. Haven't heard any noise.

--
M Stewart
Milton Keynes, UK
http://www.megalith.freeserve.co.uk/oddimage.htm