Dimmable CFL

I have several small lights around for that purpose, although they're
LED lights that use about 2.5W.
--
Mark Lloyd
http://notstupid.laughingsquid.com

"So far as I can remember, there is not one word
in the Gospels in praise of intelligence."
--Bertrand Russell

Posted by Wayne Boatwright on April 28, 2008, 10:56 am

On Mon 28 Apr 2008 05:28:13a, Mark Lloyd told us...

> On Mon, 28 Apr 2008 04:25:21 GMT, Wayne Boatwright

> [snip]

>>As a further aside, my dad had a habit of installing double light

fixtures

>>with 25 watt bulbs at strategic places throughout the house and basement,

>>wired in series, to produce a very low light level. He didn't like

walking

>>into dark rooms, especially when the light switch wasn't near the entry.

>>To him, of course, this wasn't a waste of energy. Of course, this was in

>>an era when energy consumption was not an issue or concern.

> I have several small lights around for that purpose, although they're

> LED lights that use about 2.5W.

When my dad did this, LED lights weren't even a glimmer in anyone's eye.
I'm not even sure LCD displays were around then either.

--
Wayne Boatwright
-------------------------------------------
Monday, 04(IV)/28(XXVIII)/08(MMVIII)
-------------------------------------------
Countdown till Memorial Day
3wks 6dys 16hrs 5mins
-------------------------------------------
Hey, I have an idea! Let's all go
spray paint some cars in Singapore.
-------------------------------------------

Posted by Tony Hwang on April 28, 2008, 11:01 am

Wayne Boatwright wrote:

> On Sun 27 Apr 2008 08:32:16p, Don Klipstein told us...

>>Boatwright wrote in part:

>>>Another option I've used in very old lighting with two bulbs is wiring

>>>them in series. The bulbs last forever and the color and intensity is

>>>just right. I have one fixture that remains on constantly, that the

>>>bulbs are probably 30 years old or older.

>>>

>>>As an aside, it's been said that Edison's home in Florida that is wired

>>>with DC power still has the working original bulbs throughout.

>> Just keep in mind that such century-life incandescents have energy

>>efficiency so low that in order to produce a given amount of light, you

>>increase your electric bill more than you decrease your lightbulb

>>replacement costs.

>> The first-mass-marketed carbon filament incandescents had energy

>>efficiency of a couple to at most a few lumens per watt.

>> There is a "centennial bulb" with a webcam showing a publicly

>> accessable

>>view of it continuing to work. I give low odds of its energy efficiency

>>exceeding that of a 230 volt incandescent being powered by 120 volts, or

>>roughly 1/4-1/3 that of modern 60-100 watt 750-1000 hour incandescents.

>>http://www.centennialbulb.org

>> - Don Klipstein (don@misty.com)

> I've no doubt of the inefficiency, but thought it was interesting, and

> I've seen the Centennial Bulb before. Just thought it was a curiosity.

> As a further aside, my dad had a habit of installing double light fixtures

> with 25 watt bulbs at strategic places throughout the house and basement,

> wired in series, to produce a very low light level. He didn't like walking

> into dark rooms, especially when the light switch wasn't near the entry.

> To him, of course, this wasn't a waste of energy. Of course, this was in

> an era when energy consumption was not an issue or concern.

Hi,
For low lighting I use LED bulbs. They consume only 3W per bulb.
Few different colors. Soon I hope LED will replace CFLs.

Posted by Don Klipstein on April 28, 2008, 2:13 pm

>Wayne Boatwright wrote:

>> As a further aside, my dad had a habit of installing double light fixtures

>> with 25 watt bulbs at strategic places throughout the house and basement,

>> wired in series, to produce a very low light level. He didn't like walking

>> into dark rooms, especially when the light switch wasn't near the entry.

>> To him, of course, this wasn't a waste of energy. Of course, this was in

>> an era when energy consumption was not an issue or concern.

>Hi,

>For low lighting I use LED bulbs. They consume only 3W per bulb.

>Few different colors. Soon I hope LED will replace CFLs.

For low lighting, if you use LED bulbs that have several lower power
LEDs, I recommend green or blue ones for longer life if you can accept
the color. The green ones are brighter. Many low power white LEDs fade,
with a halflife often only around a year.

Same story with LED nightlights. Green and blue are brightest for night
vision and red is dimmest.

- Don Klipstein (don@misty.com)

Posted by Jim Redelfs on April 28, 2008, 9:23 am

don@manx.misty.com (Don Klipstein) wrote:

> I give low odds of its energy efficiency exceeding that of a

> 230 volt incandescent being powered by 120 volts

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?

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.

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.

The federal government may NOT legislate the forced conversion to a
replacement technology unless it can be PROVEN that it is a superior
technology in ALL ways but, most importantly, retrofit CO$T.

This is the twenty-first century! We can (and should) no longer avoid
harvesting our own energy resources within our own lands.

Our air and water are cleaner than they have EVER been, yet, during that
same time, we've been growing and prospering as a society. We've
learned from our mistakes in the past. When we have an oil spill, it's
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.

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

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

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.
--
:)
JR

Page 4 of 9 < 1 2 3 > last >>

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