The danger of compact fluorescent lighting
Snip: Also new research has come to light that indicates that CFLs emit a high humming sound that is not in our range of hearing but is in the range of hearing of cats and dogs. Can you image hearing a high pitched humming sound all day long. It would be enough to drive you nuts! Many pet owners report that their cats or dogs do not want to be in rooms with CFL bulbs on and will become anxious if they are forced to be.
Oh, that’s interesting, I hadn’t heard the pet thing. No wonder the cats don’t hang around in the kitchen when we have that light on. The AZ Room has a lot of natural light so we rarely need to turn it on there.
It’s so scary.
Traditionally healers, such as Barbara Ann Brennan, have long advised to never do healing work under fluorescence lighting of any kind to avoid making yourself ill. These lights drain our energyNo idea what a "healer" is, or who BAB is, or how these lights "drain energy," but a family member got into TM once (I heard a lot of this language in that time) and it drained nearly all her life savings in short order. There's a lot of other material there I might question.
One thing I will NOT question is the likelihood of ultrasonic emissions. I don't know the preferred switching frequencies of these lamps but it seems likely, given the technologies involved, that they are above the range of human hearing (generally above 20 kHz) but not hugely so. Yes, this would make them annoying or worse to many cats and dogs.
Probably also to the undesirable rodents that some rodent-repellent electronics intend to repel. (I am not exactly a believer in these, but once installed our house in the woods has not had a rodent problem though my wife's car, parked outside with plant-based wiring insulation, has had major problems with rodents.)
If our CFLs help keep rodents out of our rural house, This Is A Good Thing!