"ccsikyr" wrote in message
ps.com...
I think there's a ghost in my house.

Sitting in the dark, I occasionally witness a compact flourescent bulb
light up very faintly, for no more than a second. Two lights (on two
different circuits) do this.

Other posters have correctly identified induced voltage as the most likely
cause.

With some CFL electronic ballast designs, this voltage will slowly charge a
filter capacitor inside the CFL until it reaches a critical threshold, at
which point the lamp will flash on momentarily.

The voltage may be due to the design of the 3/4 way switches, so you can try
changing these to a different design. Or change the CFL to one that has a
different ballast (e.g., quick-start vs. not-quick-start).

HTH.