Posted by Marc Martin on
URL: https://www.es-forum.com/LED-filament-bulbs-tp4034862p4034870.html

Also, based on that customer support email I got, I did some searching, and apparently to get "Energy Star" certified you have to have a power factor of at least 0.9, and a total harmonic distortion (THD) of less than 20%.  So this may be something to look for, and may be an indication of a less-noisy bulb.

I then found a BR30 LED reflector bulb with a power factor of 0.9, so I've ordered that and will test it with the AM Radio when it arrives.

Marc