[RFI] Low voltage lighting solid state "transformers"

[Pete Smith]

Our new kitchen has 8 x 2-bulb Kichler halogen under-cabinet lights.  
Not a bit of noise, because the switching PSes are inside the metal 
cases, and perhaps because they are better designed to start with, but 
288 watts!  If/when they solve the issues with color and cost, I hope to 
replace them with LEDs, but the cost/year trade-off is still measured in 
decades.

73, Pete N4ZR

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On 3/28/2011 9:41 AM, Larry Parker wrote:
> I have taken out this style of undercounter lighting from the house I just purchased.
>
> The power supply converting the 120 vac to 12 vdc functions at 20 khz.
>
> This generated HF pulse is being accentuated with the length of wire feeding the
> undercounter halogen  puck lamps.
>
> In turn producing a 40 over S9 signal on all the HF bands from 160m through 80m and up past 40m where it finally starts to dimminish.
>
> I replaced these offending lighting circuits with the newer low voltage DC LED puck lights
> which are so much more energy efficient.
>
> Larry,VE3EDY
>
>    
>
>
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