Why does the energy saver light bulb flash in the off position on an exhaust fan light fixture? A regular light bulb does not flash. This has two switches. One running the light and one running the fan.

Is the new lamp a fluorescent?

Is the new lamp a fluorescent?

Yes the bulbs are fluorescent the curly type

Fluorescent lamps can flicker with no power to it due to radio waves, is there a radio tower close by?

No radio tower around, it doesn't flicker with a standard bulb

Micrrowave oven at proximity will make it flicker. Don't like to use one of those over a stove due to the potential for mercury getting into food if the bulb breaks.