[RFI] LED lighting

[Rik van Riel]

On 07/26/2015 10:50 AM, Phil Snyder wrote:
> Well after a 4 year period the local electric company found the
> offending lightning arrester and voila no more noise! Unfortunately, the
> neighbor behind me just remodeled the outside of their house and in the
> process added about 6 LED lighting fixtures in the soffit across the
> front and after a few days of watching and listening it appears that
> they are causing way more RFI then the faulty arrester ever did.
> 
> I am hoping to learn a little more here before approaching them to make
> sure all my facts are straight. I am assuming that there is a switching
> power supply running the lights and that the power is cut to the supply
> when they are not on since the noise is gone when they are off.

It is very possible each LED has its own power supply inside,
and one of them is faulty.

"Hey, I noticed when you switch those LEDs on, I get a bunch
of noise on the radio. I am worried one of your bulbs may bee
defective, and could pose a fire hazard. Mind if we take a look
at them to see if one of them is bad?"

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