[citation][nom]kezix_69[/nom]or actually I think it is due to the blinking of these new lightbulbs... they blink at 60Hz or 120Hz or whatever. Sorry I don't know exactly what causes it I haven't looked into it much since it doesn't affect me.[/citation]
Yes it is known because of blink.... but that only happen when you buy the cheap low quality CFLs or/and have unstable voltage of electricty supply. By the way... it can also happen when the CFLs get very old.... but that means it is time to replace it...
One more thing... about the dimmer switch.. there are already some CFLs on the market which is capable to work with the dimmer switch... though they are hard to find and tend to be more expensive.
Good quality CFLs are not too bad from my experience, but I am still waitting for the LED light to get brighter and cheaper.
One more thing... regarding to the heavy metal in the CFLs... it is not the problem of using CFLs (we have been using FLs for many many years)... we just need to have a good system to recycle them.. maybe a system like we recycle our beer bottles in the US (with deposits to gain money back) will help.
PS: it is great that most of us are not using CRT monitors/TVs anymore... they have way more heavy metals in those CRT tubs....