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Re: [RFI] Light Dimmer

To: rfi@contesting.com
Subject: Re: [RFI] Light Dimmer
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Tue, 10 Dec 2019 16:07:50 -0800
List-post: <mailto:rfi@contesting.com>
On 12/10/2019 3:58 PM, Gary Johnson wrote:
My RFI web page has formal test reports on various LED light bulbs and other devices. I have found that screw-in bulbs are, as a rule, very quiet, with GE and Feit being the best measured. I have yet to find an LED light *fixture* that is even remotely acceptable.

I haven't measured any of this, but my engineering brain tells me that any fixtures for LV lighting, including LEDs, that plug onto LINE VOLTAGE (120VAC) tracks include a SMPS in the base of the fixture, and are VERY likely to be noisy.

I've bought several LED spots and floods that run on LINE VOLTAGE, and am evaluating them for noise. Ideally, I'd like to replace a lot of ncandescent lamps in undimmed tracks.

73, Jim K9YC
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