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Willy
Posted: Wed Apr 09, 2008 1:22 pm
Guest
"Justin" <Justin@NobecauseIhatespam.net> wrote in message
news:ft47bc$aij$1@aioe.org...
Quote:
Two things... Are there ant in wall switch timers that can be used for
CFLs?
What about receptacle timers that can be used with CFLs?
Something available at Lowes or Home Depot would be preferable.

If they ban incandescent how is that going to work? Is it a big deal to
make timers that can handle CFLs?


Timer's are typically not an issue when dealing with CFL'S especially if
it's a timer manufacturered in recent history. It does often become an
issue however with light SENSORS.. such as occupancy sensors. You need to
be sure to get one that is rated to accept fluorescent lights.

Some electronic timers actually power themselves by drawing current through
the lamp, which creates a problem when being used in conjunction with
compact or for that matter, any ballasted lighting product, so once again,
check to be sure your device is rated for fluorescent product.

The transition from the traditional A lamp (regular light bulb) starts in
2012 if memory serves me, with the disappearance of the 100 watt light bulb.
I think most of us will have replaced our regular A lamps with compact
fluorescents or newly arriving LED product by that time, so we'll hardly
notice.

Willy
Willy
Posted: Wed Apr 09, 2008 1:28 pm
Guest
"TKM" <nomail@no.net> wrote in message
news:IHuJj.134120$cQ1.26652@bgtnsc04-news.ops.worldnet.att.net...
Quote:

"Victor Roberts" <xxx@lighting-research.com> wrote in message
news:purcv31vtiqq5u6s8cp1fhok6sn7uc3qbo@4ax.com...
On Thu, 03 Apr 2008 23:29:40 -0400, Justin
Justin@NobecauseIhatespam.net> wrote:

Two things... Are there ant in wall switch timers that can be used for
CFLs?
What about receptacle timers that can be used with CFLs?
Something available at Lowes or Home Depot would be preferable.

Yes, there are some timers that will work with CFLs, but you
may have to test a few to find ones that work.

There are two issues:

1) If the times has only two wire connections (and does not
have its own battery power supply) it need to draw some
small amount of power through the lamp load. This is not a
problem with incandescent lamps but will cause CFLs to pulse
on for short periods at a slow rate - which will destroy the
lamps while it drives you nuts. This problem can be solved
with a small fixed load across the lamp, but this is not a
normal consumer fix.

If they ban incandescent how is that going to work? Is it a big deal to
make timers that can handle CFLs?

People will make wall timers that work with CFLs. .

--
Vic Roberts

And dimmers that dim nicely too, no doubt.

I'd also like to see a CFL that mimics a dimming incandescent where the
spectral output of the light shifts toward red as the light output goes
down. Yes, I know that's going to be difficult; so, perhaps, we'll have
to wait for that feature in the LED versions.

Terry McGowan




Getting a compact fluorescent to change color temperature predictably is an
extraordinarily difficult (if not impossible) process. There are SO MANY
variables that come into play, most particularly the type of dimmer (and
characteristics of) being used. Secondly is the type of gas used in the
CFL, not to mention the technology at work in the ballast.

While there may well be someone offering a fluorescent with promises of
color shift, it is more likely than not that in will arrive with
instructions to use a specific type of dimmer to accomplish this feat. The
product would have to actually contain more than one more source to
accomplish this. It's virtually impossible otherwise.

Regarding LED'S... no SINGLE LED will ever be able to produce color shift -
least not with the technology available today. however, it could be
accomplished through the use of 2 or 3 different color LED'S, where those
are dimmed at a different rate, thus allowing a color shift to become
apparent,.

Willy
Willy
Posted: Wed Apr 09, 2008 1:31 pm
Guest
<phil-news-nospam@ipal.net> wrote in message
news:ft8svu02k34@news5.newsguy.com...
Quote:
On Fri, 04 Apr 2008 18:46:00 GMT TKM <nomail@no.net> wrote:

| I'd also like to see a CFL that mimics a dimming incandescent where the
| spectral output of the light shifts toward red as the light output goes
| down. Yes, I know that's going to be difficult; so, perhaps, we'll have
to
| wait for that feature in the LED versions.

I'd rather someone make a dimming incandescent that keeps the same color
throughout the range. Seriously. Yeah, I know that will be hard. That's
why I suggested the idea of lots of small low voltage halogen bulbs that
are selectively powered on or off as desired.

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below
|
| first name lower case at ipal.net / spamtrap-2008-04-05-1701@ipal.net
|
|------------------------------------/-------------------------------------|


The color rendering index of a typical incandescent lamp is 99 - which is as
high as it gets. When these lamps are dimmed, the color shifts dramatically
to the human eye, becoming a faint orange glow in most cases.

As you suggest, using a cluster of miniature sources could possibly
eliminate the problem of producing less light with the same color rendering,
but I doubt that we'll be seeing that any time soon.

IMHO, we can pretty much kiss incandescent technology (as we know it today)
goodbye.

Willy
Guest
Posted: Wed Apr 09, 2008 8:42 pm
On Wed, 09 Apr 2008 18:31:23 GMT Willy <wesk@prodigy.net> wrote:

| IMHO, we can pretty much kiss incandescent technology (as we know it today)
| goodbye.

The black market won't. There will still be demand for good quality light.
Until the other technologies can match it, the market is there.

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2008-04-09-2042@ipal.net |
|------------------------------------/-------------------------------------|
Willy
Posted: Thu Apr 10, 2008 4:46 pm
Guest
<phil-news-nospam@ipal.net> wrote in message
news:ftjrao0h25@news3.newsguy.com...
Quote:
On Wed, 09 Apr 2008 18:31:23 GMT Willy <wesk@prodigy.net> wrote:

| IMHO, we can pretty much kiss incandescent technology (as we know it
today)
| goodbye.

The black market won't. There will still be demand for good quality
light.
Until the other technologies can match it, the market is there.

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below
|
| first name lower case at ipal.net / spamtrap-2008-04-09-2042@ipal.net
|
|------------------------------------/-------------------------------------|

That's true, and since many products are still manufacturered in the states
for export, I'm sure we will see plenty of the product available for several
years. HOWEVER... I do believe based on information I've heard from good
sources that utility rates will skyrocket in areas where rates are currently
cheap (5-9 cents) so by the time the A lamp starts to disappear, I feel must
of us will have changed to a more conservative source, whether fluorescents
or LED, or perhaps a new technology of which we're unaware at this point.

Willy
 
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