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Posted by Don Klipstein on October 21, 2009, 8:16 pm
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>On Mon, 19 Oct 2009 22:55:19 +0000 (UTC), don@manx.misty.com (Don
>Klipstein) wrote:
>> For lamps bright enough for general illumination, such as 40 watt
>>incandescent equivalent, I am finding most LED ones to be low on light
>>output and to often have an icy cold color.
>> This will improve over the next several years.
>Or possibly, not. Apparently there's a problem called "droop" when
>they try to increase the intensity of LEDs - efficiency drops - and
>it's already not quite as good as CFLs on the newer 1 watt and larger
>LEDs. Color ... maybe. Price ... maybe a little. But it seems the
>technology is currently stuck.
Cree XP-G has definitely more efficiency and apparently less droop than
other white LEDs of similar current ratings. The bare LEDs just became
available at Digi-Key a couple weeks or so ago.
- Don Klipstein (don@misty.com)
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Posted by Mark Lloyd on October 17, 2009, 11:04 am
wrote:
show/hide quoted text
>JIMMIE wrote:
>> I replaced one bulb of 4 incandescent bulbs with a compact florescent
>> lamp and the dimmer on the circuit quit working. The lights come on
>> but full brightness no matter where the control is. Put in a regular
>> light bulb and everything is back to normal. If igure the reactive
>> load of the florescent lamp screws up the dimmer.
>>
>> Jimmie.
>I'm no CFL expert, but I recall a thread on here where you had to buy
>special CFLs with an extra circuit in the base, for use on dimmers.
>On a related note- does anybody make CFLs for the small candelabra
>bases?
That's the same size base as C7 holiday lights.
I've found some 7W candelabra-base CFLs at Lowe's. It's been about 3
years, so that doesn't mean they have them now.
show/hide quoted text
> (can't remember the proper term). Half my ceiling lights use
>those damn things. Had to get special ones of those, too. Ones in the
>hanging lamp over kitchen table were regular 'flame' bulbs when I moved
>in, and when one zap-failed, it fried the dimmer. The special ones have
>a backup wire to keep the spike from going back up the line, or something.
BTW, I do use a CFL in my stovetop hood. It would get too hot with an
incandescent.
--
69 days until the winter solstice celebration
Mark Lloyd
http://notstupid.us
"How could you ask me to believe in God when there's
absolutely no evidence that I can see?" -- Jodie Foster
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Posted by celticsoc@aol.com on October 18, 2009, 11:02 pm
show/hide quoted text
> JIMMIE wrote:
> > I replaced one bulb of 4 incandescent bulbs with a compact florescent
> > lamp and the dimmer on the circuit quit working. The lights come on
> > but full brightness no matter where the control is. Put in a regular
> > light bulb and everything is back to normal. If igure the reactive
> > load of the florescent lamp screws up the dimmer.
> > Jimmie.
> I'm no CFL expert, but I recall a thread on here where you had to buy
> special CFLs with an extra circuit in the base, for use on dimmers.
> On a related note- does anybody make CFLs for the small candelabra
> bases? (can't remember the proper term). Half my ceiling lights use
> those damn things. Had to get special ones of those, too. Ones in the
> hanging lamp over kitchen table were regular 'flame' bulbs when I moved
> in, and when one zap-failed, it fried the dimmer. The special ones have
> a backup wire to keep the spike from going back up the line, or something=
> --
> aem sends...
I have found those at Sam's Club. I have also seenj base adapters
somewhere - Menard's, I think.
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Posted by Don Klipstein on October 19, 2009, 6:39 pm
show/hide quoted text
>JIMMIE wrote:
>> I replaced one bulb of 4 incandescent bulbs with a compact florescent
>> lamp and the dimmer on the circuit quit working. The lights come on
>> but full brightness no matter where the control is. Put in a regular
>> light bulb and everything is back to normal. If igure the reactive
>> load of the florescent lamp screws up the dimmer.
>>
>> Jimmie.
>I'm no CFL expert, but I recall a thread on here where you had to buy
>special CFLs with an extra circuit in the base, for use on dimmers.
>On a related note- does anybody make CFLs for the small candelabra
>bases? (can't remember the proper term). Half my ceiling lights use
>those damn things. Had to get special ones of those, too. Ones in the
>hanging lamp over kitchen table were regular 'flame' bulbs when I moved
>in, and when one zap-failed, it fried the dimmer. The special ones have
>a backup wire to keep the spike from going back up the line, or something.
Candelabra base CFLs are now getting a little common at Lowes and Home
Depot.
- Don Klipstein (don@misty.com)
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Posted by SMS on October 19, 2009, 7:57 pm
aemeijers wrote:
show/hide quoted text
> JIMMIE wrote:
>> I replaced one bulb of 4 incandescent bulbs with a compact florescent
>> lamp and the dimmer on the circuit quit working. The lights come on
>> but full brightness no matter where the control is. Put in a regular
>> light bulb and everything is back to normal. If igure the reactive
>> load of the florescent lamp screws up the dimmer.
>> Jimmie.
>
> I'm no CFL expert, but I recall a thread on here where you had to buy
> special CFLs with an extra circuit in the base, for use on dimmers.
>
> On a related note- does anybody make CFLs for the small candelabra
> bases? (can't remember the proper term).
Is this what you mean:
"http://www.ikea.com/us/en/catalog/products/80060603"?
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>Klipstein) wrote:
>> For lamps bright enough for general illumination, such as 40 watt
>>incandescent equivalent, I am finding most LED ones to be low on light
>>output and to often have an icy cold color.
>> This will improve over the next several years.
>Or possibly, not. Apparently there's a problem called "droop" when
>they try to increase the intensity of LEDs - efficiency drops - and
>it's already not quite as good as CFLs on the newer 1 watt and larger
>LEDs. Color ... maybe. Price ... maybe a little. But it seems the
>technology is currently stuck.