Compact Flourescents,
can be used with any fixture that does not allow dim. I had a set of CFS not cooperating and found out that the problem was with macros and timers, Since, I based most of my timers on dusk and dawn, the lights were never on in the mornings, shut of during the day, and ran all night long. I had to give hard time times to the timers. My timers were supposed to turn off at 6:15 am and turn on 30 minutes before dusk, due to the seasons they would shut off before they were turned on, I then learned to respect the use timers and not blame the use Compact Flourescents.