[Elecraft] LED bulbs

[Charlie T, K3ICH]

You'll find that the higher color temperature bulbs (bluer, closer to 
daylight,  5000 to 6500K) are a ted more efficient as to Lumens per watts 
than the lower temperature "soft/warm" light in the 2700 to 3000K.  Also, 
the ones (Cree for example) that have better color rendition are even a 
little less efficient.  However, I much prefer the lower temps around the 
house.  My shop light is a 38 watt, 4000K which is OK for it's use.  It 
looks exactly like a old twin 40 watt fluorescent fixture but noticeably 
brighter at 2800 Lumens,  and was on sale at Costco for $35.95.  I won't 
live long enough for it to wear out.

It's a bit eerie to touch my desk lamp with a 3½ watt LED in it and find 
that it is at room temperature.  The old 40 watt lamp would burn your 
fingers!

Suffice it to say, LED's ARE getting cheaper and better.  It's easy to find 
them on sale for under four bucks.

I have a feeling this thread is about to be executed (??)

73, Charlie k3ICH


----- Original Message ----- 
From: "Mike Reublin NF4L" <nf4l at comcast.net>
To: "Elecraft List" <elecraft at mailman.qth.net>
Sent: Tuesday, May 12, 2015 8:33 AM
Subject: Re: [Elecraft] LED bulbs


>I put 3 LED can lights in the shack, and there are 11 LED bulbs in the 
>kitchen next door. No noise that I can attribute to them. I like the 
>whiter, brighter light.
>
> I do have a question about the claimed $ savings. The base of these things 
> get fairly hot. How much is that heat costing?
>
> 73, Mike NF4L
>
>
>> On May 12, 2015, at 8:20 AM, Charles Yahrling <cfytech24x7 at gmail.com> 
>> wrote:
>>
>> Why not go to home depot and get a few to try? A ham friend did just that
>> to replace CFLs and had good results.  More light
>> from same watt rating with the LED bulbs. No RFI.  Pretty cheap 
>> investment,
>> easy to experiment with, just screw out the old and in with the new. No
>> xformer required.  No electrician required.
>>
>> -- 
>> de AB1VL
>> NAQCC #6799
>>
>> ab1vl.com
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