Posted by Derek Broughton on February 7, 2007, 9:12 pm
Eeyore wrote:
>> Yes, I've had early failures, particularly on the first CFs I bought, but
>> overall the CFs are still much cheaper to buy - and continually being
>> more so as their prices drop and reliability increases.
>
> You might be interested to know that the first CFLs I bought about 15 yrs
> ago were among those with the longest lives I've ever had.
Well, I still have most of the ones I bought about 15 years ago, but of the
first batch of about 8, two failed within a year. Of the ones I've bought
in the last 5 years, none have failed.
--
derek
Posted by me on February 7, 2007, 11:34 am
>This absolutely hasn't been my experience.
>4 of 20 of those expensive CF I bought lasted less than one year.
>Still I think overall is a savings.
I agree
Most CF lamps I've bough do NOT last anywhere near
their claimed life
Posted by clare at snyder.on.ca on February 7, 2007, 5:40 pm
On Wed, 07 Feb 2007 10:34:32 -0600, me@privacy.net wrote:
>>This absolutely hasn't been my experience.
>>4 of 20 of those expensive CF I bought lasted less than one year.
>>Still I think overall is a savings.
>I agree
>Most CF lamps I've bough do NOT last anywhere near
>their claimed life
As usual, where there's money to be made, you end up with the chinese
crap flooding the market, and with deceptive pakaging (brand names you
used to be able to trust "licenced" to cheap importers)
--
Posted via a free Usenet account from http://www.teranews.com
Posted by Eeyore on February 7, 2007, 7:25 pm
me@privacy.net wrote:
> >This absolutely hasn't been my experience.
> >4 of 20 of those expensive CF I bought lasted less than one year.
> >Still I think overall is a savings.
> I agree
> Most CF lamps I've bough do NOT last anywhere near
> their claimed life
I suggest you buy some decent ones then. I've had no trouble with Philips or
Osram.
Graham
Posted by Tony Wesley on February 2, 2007, 10:58 pm
> > ZERO!
> > If you are not cooling your home, EVERY light bulb and appliance is
> > 100% efficient.
> If you need HEAT in the home then the savings is ZERO.
I just check my latest bill from DTE Energy. From electricity, I get
31,200 BTUs for a buck. From natural gas, if we assume my furnance is
only 80% efficient, I get 78,461 BTUs for a buck.
So, during heating season, waste heat from electricity costs me over
2.5 times what it costs from using my furnace. So, by switching to
CFL, there is a cost savings in heating season of about 60% of the
electricity used.
During cooling season, I have to pay to have the heat removed from the
house. Assuming a coefficient of performance of 3 in the AC, there is
a savings of about 133% of the electricity used.
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>> overall the CFs are still much cheaper to buy - and continually being
>> more so as their prices drop and reliability increases.
>
> You might be interested to know that the first CFLs I bought about 15 yrs
> ago were among those with the longest lives I've ever had.