[RFI] LED recessed lighting

Scott Yost nm8rmedic at rocketmail.com
Wed Jun 22 19:51:46 EDT 2022


Since it might be futile trying to identify an RFI free LED based on another's experience I'll offer a solution I found. 
I retrofitted incandescent lights in my wife's sewing room with these:
https://www.amazon.com/gp/aw/d/B08NPH3NXF?psc=1&ref=ppx_pop_mob_b_asin_title
These are not can lights, and what's worse I found they produced RFI at the low end of 40 where I spend most of my time. 
But, I found an RFI solution that may help with a noisy LED.
Neither mix 31 or 43 in a common mode choke had an effect on the RFI these bulbs produced. 
But a safety capacitor placed from hot to neutral in the junction box feeding the lights completely eliminated it.
DO NOT USE an ordinary capacitor. Use only a properly rated safety capacitor. 
In my case I used a 0.0022 uF X2 275V metal film capacitor.  One is all it took to silence the entire string.
ScottNM8R

-------- Original message --------From: David Hale <astronomerdave at gmail.com> Date: 6/18/22 18:35 (GMT-05:00) To: RFI at contesting.com Subject: [RFI] LED recessed lighting 
Does anyone have experience with or can recommend an LED can light that is RFI-friendly? My wife wants recessed lighting in a spare room we’re turning into a “den”. 73 de N3WTK 
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-------- Original message --------From: David Hale <astronomerdave at gmail.com> Date: 6/18/22  18:35  (GMT-05:00) To: RFI at contesting.com Subject: [RFI] LED recessed lighting Does anyone have experience with or can recommend an LED can light that is RFI-friendly? My wife wants recessed lighting in a spare room we’re turning into a “den”. 73 de N3WTK _______________________________________________RFI mailing listRFI at contesting.comhttp://lists.contesting.com/mailman/listinfo/rfi


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