[RFI] Light Dimmer

[Jeff Blaine]

I should comment on the FEIT bulb and quality that.  I tested the 
emissions with an SA coupled to the line cord and this was done at FULL 
VOLTAGE.  Meaning the bulbs when powered with 120V AC were quiet.

I did NOT check the dimmed condition on these LED bulbs.

I do have Lutron dimmers throughout the house - but for the bulbs that 
are tied to these, I have generally stuck with incandescent types on the 
assumption that 1) a dimmed incandescent bulb lasts a very long time 
indeed compared with a full-line voltage type and 2) the combination of 
Lutron + incandescent is radio quiet where I assume that the LED types 
would be of no benefit and most likly somewhat of a noise source.  There 
are a few LED FEIT bulbs in the house on generic dimmers but those are 
only in rooms where they are unoccupied or typically infrequently used 
when it's radio time.

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com


On 12/10/19 3:48 PM, Jeff Blaine wrote:
> The Lutron dimmers I have in the house here are quiet. Recommended.
>
> For the bulbs, I've found all of the FEIT brand bulbs sold by Costco 
> to be quiet also.
>
> 73/jeff/ac0c
> alpha-charlie-zero-charlie
> www.ac0c.com
>
>
> On 12/10/19 3:35 PM, ve3yv at pathcom.com wrote:
>> FWIW - my experience:  incandesent dimmers don't always work on LED 
>> bulbs -
>> dimmable or otherwise.  I also discovered that not all LED dimmers are
>> equal.  In this case, I installed LED pot lights and they recommended a
>> Luxton dimmer.  I bought another brand at a big box and it was toast in
>> under 2 weeks (total load 140 wts on a 600 wt rating).  Went to 
>> electrical
>> supply house to get recommended after consulting with manufactuer 
>> support.
>> Now at 1 year +.  There are some intersting articles about leading v.
>> trailing edge dimmers for LED lights.  apparently it can matter.
>>
>>
>> 73 George  VE3YV / K8HI
>>
>>
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