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RFI Potential from new LED Street Lights

Feb 28th 2012, 01:14

WA1JFD

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
All,

My town is about to embark on a replacement street light program to remove aging sodiums, (a know RFI problem) with LED lamps/fixtures.

FWIK: The LEDS may be pulsed with high current,

Are these new LED street lamps known to be an RFI problem?
Is it some BRANDS of LED street lamps or all?
Or, is RFI non-existent in these new LED street lamps.

I have an opportunity to inform the Town Fathers of better choices for this type of lighting to avoid the potential of RFI.

I must act quickly with concrete, documented information within a week or 10 days. I just got notice an hour ago of the Town managers plans to adopt this new LED street lighting at the selectboard Monday meeting.

I am happy to see the old sodiums go away with their RFI noise that can travel as much as a mile on the power lines.

I surely hope that the LEDS are not a problem as well.

Regards,

Charlie

WA1JFD@arrl.net
Feb 29th 2012, 19:46

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0

Yes, they can be a problem, if they have a noisy switching power supplies.

http://forum.allaboutcircuits.com/showthread.php?t=47133
This manufacturer admitted they have had complaints with [UHF] garage door openers and asked for assistance on this forum.

Ideally, the lamps would easy pass the applicable FCC regulations regarding emitted/conducted RFI.

Zack Lau W1VT
ARRL Senior Lab Engineer

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