Quote Originally Posted by ka4dpo View Post
I bought four Chinese 7 watt LED bulbs for the lights over the kitchen sink. They make a ton of radio noise from 3.5 to almost 10MHZ, they generate an S9 noise level across 40 meters. I have changed out all of the outdoor lights and almost all of the indoor lights to LED's and these are the only ones that generate any kind of noise. I guess I will have to replace them with the more expensive Phillips bulbs but I don't want these things. The weird thing is that I got almost all of the other LED bulbs from the same source.
What brand are they, out of curiosity? These are Chinese, according to the bottom of the box. The only thing detected so far is a slight 60 Hz buzz, but it's much lower than the noise put out by a CFL or even the network cable running through my office about 6 feet away.