LED bulbs

[Karl W4KRL]

Richard,

My experience with LEDs is similar to Terry F's. When we renovated our
kitchen I had standard 4-inch recessed fixtures installed and put in
Sylvania LED conversion bulbs from Lowe's. They are great. They come on
instantly, have a pleasant color and dim nicely on a dimmer certified for
CFL/LED. I like them better than incandescents and I don't bother to yell
at anyone for leaving the lights on when not in the room. My six ceiling
lights and two drop pendants use 72W compared with the wasteful halogen
undercabinet lights that burn 200W into the darkness. Unfortunately, I have
not found any acceptable LED replacements for the little 20W G4-pin bulbs.
They all look green.

We just redid the family room and I couldn't be happier with the 6-inch
Sylvania LEDs and Phillips spots.

Previously I had almost completely converted to CFLS with variable success.
Some worked well and some were useless with poor color, long startup time
and short life. On the pro side I never noticed any RFI.

I just checked the Staples bulb against the two year old Home Depot bulb.
The HD bulb wiped out the FM broadcast band as before. *No discernible
noise from the Staples bulb*. Technology marches on!

*73 Karl W4KRL*

On Wed, Jan 14, 2015 at 2:00 PM, Richard O'Neill <
richardoneill at earthlink.net> wrote:

>  Hello Karl,
>
>  Thank you. The detailed instructions are much appreciated. I haven't
> tried working with these new LED lamps because of cost but now that they're
> affordable, I will.
> Next stop after Staples, the Dollar store.  :-)
>
> Best Regards,
> Richard
>
>
>
> On 1/14/2015 1:35 PM, Karl W4KRL wrote:
>
>  Richard,
>
>  Here is my article for converting a dollar store cell phone charger to a
> boost mode supply for LEDs.
>
>  My approach is easier, more elegant  and more effective than the
> Instructables approach. Of course you can buy the parts and build your own
> instead of converting the dollar store unit. If you do that I would suggest
> using the NCP3063 chip.
>
>  *73 Karl W4KRL*
>
> On Wed, Jan 14, 2015 at 12:24 PM, Richard O'Neill <
> richardoneill at earthlink.net> wrote:
>
>>  Hello Karl,
>>
>>  Could you email me the instructions for converting the LED to 12 volts?
>>
>> Best Regards,
>> Richard
>>
>>
>>
>> On 1/14/2015 12:07 PM, Karl W4KRL wrote:
>>
>>  If you want to try LED bulbs but don't want to take out a second
>> mortgage on your home Staples has 800 lumen (60W equivalent) bulbs on sale
>> for $3.99 in stores (not online). It is 3000K and dimmable. Sold under
>> the Staples brand but looks very much like a Phillips.
>>
>> ​ They were prominently on display​ inside the front door at the Manassas
>> Sudley Road store.
>>
>>   My article in the July 2012 Newsletter shows how to convert LED bulbs
>> to 12Vdc for $1.
>>
>>
>>
>>   *73 Karl W4KRL*
>>
>>
>>
>
>
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