[Elecraft] Filtering RFI from LED & flouresence Dimmer Switches

Clay Autery cautery at montac.com
Tue Jan 26 11:56:10 EST 2016


Wonder if it's "OK" to use "quality" LED bulbs and get away with it? 
I've got the full Lift Master setup...  I'll check the two types of LEDs
I have (one CREE based, the other not) and see if it impacts the remote
opener's ability to function.

73,

______________________
Clay Autery

On 1/26/2016 9:38 AM, Craig Smith wrote:
> Thanks for the garage door opener experience.   I had my door and opener replaced a few months ago.   The manual for the opener (Lift Master) specifically says not to use LED bulbs.   I was scratching my head over that but did use CFLs in the opener.  I asked the installer why that recommendation was there, and he said he didn’t know why LEDs couldn’t be used.   But, as your experience shows, it appears that it can indeed be a problem.   Probably the close proximity of the opener receiver to the poorly filtered (for some bulbs) switch-mode converters in the bulbs.
>
> 73  Craig   AC0DS
>
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