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Dimmable CFL Tony Hwang 04-26-2008
---> Re: Dimmable CFL =?ISO-8859-1?Q?...04-27-2008
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Posted by Don Klipstein on April 28, 2008, 2:01 pm
Redelfs wrote in part:

>Do you believe that 130V-rated (commercial?) incandescent lamps,
>operating at ~120VAC, are longer-lasting enough to be worth the hassle
>of getting them (wholesaler) and price, compared to an everyday bulb?

They are available at Lowes. You can also get Philips "/99" series
incandescents from bulbs.com - those are rated to last 2500 hours.

>I recall that, some >30-years ago, I acquired one or more 130V-rated
>incandescent lamps from one of the local, "city sales" wholesaler. I
>don't remember following-up on the lamp's lifespan, but it was an
>attempt to increase the operating life of a hard-to-reach lamp.
>
>My biggest road block to converting to compact fluorescent lamps is that
>all but one of my most-used light fixtures is controlled by a dimmer
>switch that gets USED.

Target now has dimmable CFLs.

>I need FILAMENTS to illuminate my home. A governmental mandate -
>un-funded, I might add - to force me to convert to CFLs (beginning in a
>couple years) is unconstitutional.

Home Depot is already selling incandescents with energy efficiency
improved enough to not be affected by the ban that starts in 2012-2014.
They are rated to last 3,000 hours and are dimmable. They are Philips
Halogena "Energy Saver".

- Don Klipstein (don@misty.com)

Posted by David Combs on May 26, 2008, 5:10 pm
> don@manx.misty.com (Don Klipstein) wrote:
>
...
>
>Our air and water are cleaner than they have EVER been, yet, during that

Well, things have indeed gotten much better. For instance this
surface coal-mining on hilltops, all the "tailings" being
shoved down into the valleys.

Thank god for Bush and Cheney's regulations that those sites have
to be remediated back to original beauty and cleanliness "+". And note
the by now hundred of examples of the good-citizen coal companies transporting
all those tailings from way down in the valleys back up to where
they came from, then sealed in by the most modern technology so no
leaks guaranteed for the next 20 million years, and then schools
and hospitals and auditoriums built above it all, beautiful
landscaping, lucious green grass, playgrounds and swimming pools
for the valley town's kids, really nice!


>same time, we've been growing and prospering as a society. We've

I thought it was common knowledge that *median*-income, in "real"
terms, peaked in the early 70's, and it's been downhill ever
since.

>learned from our mistakes in the past. When we have an oil spill, it's

Has Exxon ever paid even 50-cents for cleanup for the Exxon-Valdez oil spill?

(Interesting investigative-reporter book: "the best democracy money
can buy", by greg palast. 10 or 15 chapters, each on a separate
(paid for) investigation do by him (palast: American, reports for or at
least has shows on BBC Newsnight. (Of course, you'll never see them
*here*!). Anyway, captain was drunk, in bed, (I think that's what he
found), but far, far worse was that the perfectly-functioning radar was turned
OFF
that night -- hell, maybe always! Betcha you didn't see *that* in the newspapers
or on the TV!))



>often reported by the gallon instead of the barrel to prop-up the all
>important NUMBER.
>
>A modern oil drilling operation has a surprisingly small footprint.
>When they are done at that location, they restore the site to
>before-drilling conditions.
>
>We need to build more oil refineries domestically then go get more of
>OUR OWN oil. This would certainly slow the RISE in the price of
>gasoline.

What I hear is that there simply isn't that much more around here (USA) --
that the biggest such find is almost guaranteed to be smaller than Alaska
(which apparantely just isn't all that big.)

Then there's oil from "oil shale", I understand, like up in Canada, and there's
supposed to be *lots* of it, the only problem being that's it's (apparantely)
BY FAR the "dirtiest" type, with (maybe) equiv effect on the atmosphere, etc.





>We also need to start building more nuclear-powered, electricity
>generating stations.



Well, I myself live maybe 10 miles north of "the Bronx", and just 20 or 30 miles
northwest of me, right there on the Hudson river, there's two (or is
it three?) of them.

They expire in just a while (5 years?), are already leaking Tritium
into the drinking water, have already had some close calls to Armaagheddon
(sp?), and guess what -- they're trying to get a 30 year extension!
And with the kind of money they have for "lobbying" (ie bribes),
they'll probably get it.

Insane.

If you're gonna build the things, at least do it out in Nevada or the
Dakotas where if something blows you don't throw the entire nation info
a bottomless depression from having to abandon the entire East Coast
from D.C. to Boston.


>No thanks to prohibitive legislative and
>environmental enactments, it takes YEARS just to do the paperwork for a
>new nuke. That needs to be whittled-down to a couple of years at most.
>
>It's only 2008 and we apparently can't WAIT to forget about 9/11. (2001
>for those of you that forgot.)

That too. Had Osama been a bit smarter, he'd of have those planes dive
into the spent-fuel ponds right there next to those nuclear plants.



>Next March 28, it will be thirty YEARS since the TMI2 (Three Mile Island
>Unit 2) "accident" and we can apparently NEVER forget.

And how long ago was Chernoble (sp?)? And the effect of that on having
to abandon a huge amount of land?

And what about the wind-effect, carrying the radiation clear across western
Europe? And its food-supply?



>Which event killed more people?
>
>Carbon footprint? When compared to a nuclear power station, an
>equivalent coal-fired operation has a *HUGE* footprint. It's fuel is
>delivered 2-3 times a week by the >100-car TRAINLOAD. It adds to the
>MOUNTAIN of coal that a station keeps on hand.
>
>Omaha has such an operation along the Nebraska side of the Missouri
>river. The railroad tracks bisect the city.
>
>We also benefit from Fort Calhoun (nuclear) Generating Station somewhat
>further north upriver from OPPD's North Omaha (coal-fired) Station.
>
>My utility is currently building a second, coal-fired unit outside
>Nebraska City - about 60 miles south of Omaha along the Missouri river.
>
>I would LOVE another nuke.




>But, I digress. Back to Thomas Alva Edison's most earth-changing
>invention: The light bulb.
>
>The federal mandate to phase-out the common incandescent lamp is an
>unconstitutional encroachment on the private sector.
>
>Banning ourselves (huh?) from harvesting huge fuel resources within our
>own lands is absurd at least. Considering the price of gas, it's become
>stupid, too.
>
>We really need to grow a BRAIN and a backbone about energy: The BRAIN
>to build it (refinery, drill site or nuke power station) and the
>BACKBONE to OVERCOME all the hand-wringing and shrieks of anguish from
>the crybaby left while it happens - clean, safe and quite overdue.

Nah, what we really need to do is to "off" those Chinese and Indians
who're (now or very soon will be) taking all our oil!

Cheers!

David


Posted by Don Klipstein on April 27, 2008, 11:07 pm
> <SNIP>
>
>They have big honkin' CFLs with mogul bases too. They're starting to
>appear at the big boxes. You have to be careful though because there are
>also some similar looking mogul based CFLs that are designed to directly
>replace HID lights such as mercury vapor without removing the HID
>ballast.

CAUTION - most of those mogul screw base ballastless CFLs get overpowered
in HID fixtures - should they work at all.

CFLs of wattage over 50 watts (and for that matter also most under
50 watts) tend to either have their own internal ballasts or require
ballasts specific to themselves as opposed to ballasts for mercury or
other HID lamps. Do not put a mogul base CFL into a 175 watt mercury
fixture unless it is rated for use in a 175 watt mercury fixture and also
has the ANSI "ballast compatibility" code of H39.
Other HID "retrofit lamps" have other ANSI "ballast compatibility" codes
on either the bulb or the package or in any inserted printed material.
Use those in HID fixtures only if the fixture and/or the ballast has an
ANSI "ballast compatibility" code same as one for the lamp (lightbulb).
Otherwise, there is probability or possibility of malfunction, including
significant chance that malfunction will occur "down the road" should the
lamp work "apparently OK" initially. Such malfunctions may include
hazardous ones.

Keep in mind that there is such a thing as ballastless mogul screw
base CFLs that lack any ANSI "ballast compatibility" codes. Those require
ballasts/fixtures recommended by the lamp manufacturer, which may be
proprietary ones. The best example that I can think of is Lights of
America "Fluorex" lamps, widely available at Home Depot.

- Don Klipstein (don@misty.com)

Posted by Art Todesco on April 28, 2008, 12:11 am
Don Klipstein wrote:
>> Blattus Slafaly ? (3) ¼ :) wrote:
>>> Tony Hwang wrote:
>>>> Hi,
>>>> Came across a 23W dimmable CFL. Got one to try it out.
>>>> It worked ~2 hours and pop, it went to full brightness and
>>>> no more dimmable??!! Are they this unreliable? Or I got bad one.
>>> You can't really expect a CFL to have the same range as an incandescent
>>> bulb. If you are testing it to extremes you can expect it to pop.
>>>
>> I don't believe that it should be
>> expected to pop. I have 2 of them.
>> They don't dim very well. By that I
>> mean, when dimmed, they flicker
>> quite a bit. The range is good if you
>> can stand the blinkety blink. There
>> are spots where they seem to settle down
>> and be ok. BTW, I am
>> using this on an X10 lamp module, so
>> finding a "good" spot is quite
>> difficult. With a real dimmer, it might
>> be easier.
>
> I have this sinking feeling that dimmable screw-base CFLs at least
> sometimes lack provision to have their filaments maintained at a proper
> temperature when they are dimmed. I would expect some compromise in life
> expectancy with severe or moderately severe dimming.
>
> One scheme mentioned a lot in some thread in sci.engr.lighting earlier
> this year is to have two sets of lights in a room - one for bright
> lighting and another for dim lighting.
>
> - Don Klipstein (don@misty.com)
They really don't have filaments as
regular fluorescent lamps. Because they
use an electronic ballast, the voltage
can be high enough to not need the
traditional heated filament, starter, etc.

Posted by Don Klipstein on April 28, 2008, 3:02 am
>Don Klipstein wrote:
>>> Blattus Slafaly ? (3) ¼ :) wrote:
>>>> Tony Hwang wrote:
>>>>> Hi,
>>>>> Came across a 23W dimmable CFL. Got one to try it out.
>>>>> It worked ~2 hours and pop, it went to full brightness and
>>>>> no more dimmable??!! Are they this unreliable? Or I got bad one.
>>>> You can't really expect a CFL to have the same range as an incandescent
>>>> bulb. If you are testing it to extremes you can expect it to pop.
>>>>
>>> I don't believe that it should be
>>> expected to pop. I have 2 of them.
>>> They don't dim very well. By that I
>>> mean, when dimmed, they flicker
>>> quite a bit. The range is good if you
>>> can stand the blinkety blink. There
>>> are spots where they seem to settle down
>>> and be ok. BTW, I am
>>> using this on an X10 lamp module, so
>>> finding a "good" spot is quite
>>> difficult. With a real dimmer, it might
>>> be easier.
>>
>> I have this sinking feeling that dimmable screw-base CFLs at least
>> sometimes lack provision to have their filaments maintained at a proper
>> temperature when they are dimmed. I would expect some compromise in life
>> expectancy with severe or moderately severe dimming.
>>
>> One scheme mentioned a lot in some thread in sci.engr.lighting earlier
>> this year is to have two sets of lights in a room - one for bright
>> lighting and another for dim lighting.
>>
>> - Don Klipstein (don@misty.com)

>They really don't have filaments as regular fluorescent lamps. Because they
>use an electronic ballast, the voltage can be high enough to not need the
>traditional heated filament, starter, etc.

They actually have filament-style electrodes. They somewhat get away
with lack of preheating those filaments during starting, but the "hot
cathode" "filament style" electrodes are still what is there!

Availability to force starting without preheating the filament
electrodes is "Instant Start". This is opposed to "Rapid Start",
"Program Start", and a couple other schemes.

True instant start is something that I think goes at best at own risk
when dimming is used!

- Don Klipstein (don@misty.com)

Page 7 of 9       < 1 2 3 > last >>
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