Total posts : 45366
Of three LED bulbs I purchased, one puts out a real RF blast on house radios.
I noticed on the spectrum analyzer the RFI from the bulb is many times worse down below medium wave on the long wave band.
Sometime I want to take a radio outside and see how far that noise is traveling in daytime and nighttime.
The bulb is in storage as an emergency backup if all the other bulbs go bad.
The labeling and receipts usually say these bulbs will be replaced if defective, but I can never keep track of where I bought the bulbs and how to find the specific paperwork.