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Don Klipstein

In , wrote:
On 8/9/09 07:23:35 +0 UTC, (Don Klipstein) wrote:

In article ,
wrote:

SNIP what would otherwise be resaid more than once, as I edit for space

In a perfect world -----
I have had TERRIBLE luck with Sylvania CF PAR bulbs. 3 two-packs now
that one bulb in each was dead within 30 seconds - have not had one
last 2 years yet. Several have failed within 4 months.

Can you tell us model numbers / part numbers and nominal wattages that
have been so unlucky, as well as good description of what kind of fixtures
these fared so poorly in?

Please tell the world every possible detail of any CFL that has had 3
out of 6 croaking within half a minute. I have not even found the stool
specimens from dollar stores to be *that bad*.

Sylvania 15 watt Osram/Sylvania reflector (par) bulbs in recessed
non-insulated ceiling (pot light) fixtures.

I suspect those are minor improvement over whatever insulated ones for
CFL overheating. For CFLs, I like to refer to recessed ceiling fixtures
in general as "heat hellholes".

Philips has, as of last time I checked, a product line of CFLs with
non-dimmable ones up to and including 23 watts (and not including 25
watts) being outright rated for use in recessed ceiling fixtures. These
are not PAR floods, but there are snap-on flood-reflectors available for
these. I strongly recommend using the wider R40 one as opposed to the
narrower R30 one if the R40 one fits with at least almost 1/4 inch of air
space around its rim for convected air to flow around.

number on the bulb says cf15elbr30frost

Thanks for this info - makes me think 3.75 inch diameter frosted
reflectorized floodlight with bulge approaching the base. This leads to a
bit of homework for me to do to see if the problem you had with this one
is common enough to show up in web searches. Please feel free to nag me
here in the likely event I get get sidetracked by the other $#!+ that I
do, such as a "day job" and a "side job", a website of mine that I need to
work at at least a little for, and spending time and some effort to
maintain a relationship with "someone special" that I would refer to as
my spouse if PA marriage law was like that of Canada...

The old incandescents lasted over 4 years. I just replaced one for the
second time in TWENTY EIGHT YEARS - and it is used daily - usually for
more than 3 hours a day.

Please tell us manufacturer, model #, part #, and every other relevant
description/info of incandescents having such duration.

The inccandescents were, IIRC, 60 watt PAR32. in the same fixtures.

Thanks for what you told us here so far - but I fail to see manufacturer
or brand, or part number specific enough to confirm or rule out
vibration-resistant filament design (less efficient), longlife version,
halogen version, whatever.

Just replaced the last one, installed in1998, over a week ago (and
replaced it wirh the Sylvania that lasted 30 seconds). I also have
some Philips Marathon 15 watt PAR32 CFL bulbs in service - less than
2 years yet, but still working

This slightly reinforces the good sensation that I have received for
Philips CFLs. Philips is one of the "Big Three", all 3 of which I have
found generally better in USA than others for CFs and lightbulbs in
general. The other 2 are Sylvania and GE.

SNIP a dozen or so lines mostly previously quoted

Tody is the second day we've had the AC on here in Central Ontario
this year. Most summers are MUCH hotter and more humid.

I have noted already as a weather and atmospheric science nut that the
Ontario-to-Hudson-Bay area had an especially cool July, as part of
mid-year so-far having generally northeast and northeastern-"MidWest"
USA and nearby region of Canada running notably cool. This occurred
during a time period having a slightly wild swing in global temperature as
determined by interpretation of satellite data for "lower troposphere" and
where the global surface temperature upticked a bit from "warm but
downturning the global warming trend" to "warmth of 2004-2005
*maybe-maintained*.

I still note that the coolness of NE and eastish-N-central USA and areas
of Canada from such to around Hudson Bay did indeed occur. I merely say
that this cooling is a temporary one of maybe 2% of the globe's area.

- Don Klipstein )