What you are describing almost sounds like a thermal overload in the ballast.
Fluorescent bulbs flicker in ceiling fan.
If the light on your ceiling fan light is flickering it s a good idea to check it out sooner rather than later because it may be an electrical problem.
The intensity of the flicker effect may vary depending on the situation.
Flickering lights can be annoying especially if you don t know the cause.
This method works fine if the bulb were a standard.
With the ballast uncovered run the light till they flicker then carefully check if the ballast is too hot to test.
That may be all you need to do but if the bulb still flickers remove it and try another bulb.
If it s picked up by camera equipment then use other lighting as well to soften the effect which can effect a focus issue or check the shutter speed trying other equipment if need be.
To stop the flickering the root cause must be found first.
If the flickering bulb is a cfl try replacing it with an led or incandescent bulb.
However in most cases it is very annoying and disturbing.
If you re able to verify that the ceiling fixture is the only one flickering get a ladder and try tightening the light bulb.
To eliminate flicker just match the frequency of the bulb with the correct frequency achieved by top quality ballast and don t use cheap bulbs.
Double check your wiring connections just to make sure however i have a light fixture that is controlled by a motion.
They advised using only incandescent bulbs in the fixture because of this feature.
After discussing this with emerson technical support i learned that the remote receiver controls the lights using a pulse width modulated signal basically a dimmer switch.
I believe it is because the lamps are cfl and the control module is getting the neutral through the electronic circuitry.
After switching to leds or when replacing a faulty led lamp in some cases the led light will start flickering.
However if this is isn t your problem there could be a loose and or bad connection in the wiring.
I hope you ve researched like takabanana did regarding the bulbs and switches used in the fan.
The ceiling fan remote receiver causes the flourescent lights to flicker.
Some tubes will flicker till they burn in but it is minor.