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Peter
Guest
Guest
Wed Jul 06, 2011 7:32 am
Light bulbs used to cost $0.15-$1.50 then we were told it is better for the
environment and our pocket to replace (even working) light bulbs with new
ones that cost $5-$10 although these ones are being replaced orverseas with
even newer ones that are more environmental and economical at a cost of
$20'ish each.
--
Don McKenzie
Guest
Guest
Wed Jul 06, 2011 7:55 am
On 06-Jul-11 5:32 PM, Peter wrote:
Quote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better for the
environment and our pocket to replace (even working) light bulbs with new
ones that cost $5-$10 although these ones are being replaced orverseas with
even newer ones that are more environmental and economical at a cost of
$20'ish each.
environment and our pocket to replace (even working) light bulbs with new
ones that cost $5-$10 although these ones are being replaced orverseas with
even newer ones that are more environmental and economical at a cost of
$20'ish each.
Can't wait for the $250 ones, we will save a fortune :-)
Cheers Don...
============
--
Don McKenzie
Dontronics Blog: http://www.GodzillaSeaMonkey.com
Dontronics Site Map: http://www.dontronics.com/sitemap
E-Mail Contact Page: http://www.dontronics.com/email
Web Camera Page: http://www.dontronics.com/webcam
No More Damn Spam: http://www.dontronics.com/spam
New MMBasic Computer http://www.TheMaximiteComputer.com
These products will reduce in price by 5% every month:
http://www.dontronics-shop.com/minus-5-every-month.html
http://www.dontronics-shop.com/ics.html
Bare Proto PCB for PIC or AVR projects?
"I'd buy that for a Dollar!".
http://www.dontronics-shop.com/simmstick-fifteen-years-on.html
atec77
Guest
Guest
Wed Jul 06, 2011 8:30 am
On 6/07/2011 5:55 PM, Don McKenzie wrote:
Quote:
On 06-Jul-11 5:32 PM, Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the
environment and our pocket to replace (even working) light bulbs with new
ones that cost $5-$10 although these ones are being replaced orverseas
with
even newer ones that are more environmental and economical at a cost of
$20'ish each.
Can't wait for the $250 ones, we will save a fortune :-)
Cheers Don...
============
Already using low voltage led's with a common dc rail around the house
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the
environment and our pocket to replace (even working) light bulbs with new
ones that cost $5-$10 although these ones are being replaced orverseas
with
even newer ones that are more environmental and economical at a cost of
$20'ish each.
Can't wait for the $250 ones, we will save a fortune :-)
Cheers Don...
============
Already using low voltage led's with a common dc rail around the house
--
X-No-Archive: Yes
Trevor Wilson
Guest
Guest
Wed Jul 06, 2011 10:58 pm
Peter wrote:
Quote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years, I've
experienced TWO failures. One was caused by a wayward possum and the other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the tube.
The CFLs are used from between a few minutes per day and several hours per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is unsuitable
for any other type of lamp.
--
Trevor Wilson
www.rageaudio.com.au
keithr
Guest
Guest
Thu Jul 07, 2011 2:28 am
On 7/07/2011 8:58 AM, Trevor Wilson wrote:
Quote:
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years, I've
experienced TWO failures. One was caused by a wayward possum and the other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the tube.
The CFLs are used from between a few minutes per day and several hours per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is unsuitable
for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years, I've
experienced TWO failures. One was caused by a wayward possum and the other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the tube.
The CFLs are used from between a few minutes per day and several hours per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is unsuitable
for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived
in this house, I have replaced twice as many of them, than Halogens.
Dennis
Guest
Guest
Thu Jul 07, 2011 3:03 am
"keithr" <keith_at_nowhere.com.au> wrote in message
news:4e1519d7_at_dnews.tpgi.com.au...
Quote:
On 7/07/2011 8:58 AM, Trevor Wilson wrote:
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years,
I've
experienced TWO failures. One was caused by a wayward possum and the
other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the
tube.
The CFLs are used from between a few minutes per day and several hours
per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour
per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is
unsuitable
for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived in
this house, I have replaced twice as many of them, than Halogens.
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years,
I've
experienced TWO failures. One was caused by a wayward possum and the
other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the
tube.
The CFLs are used from between a few minutes per day and several hours
per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour
per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is
unsuitable
for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived in
this house, I have replaced twice as many of them, than Halogens.
My 1st mistake was buying Nelson brand lamps, most crapped out within 12
months, a couple even smoked up.
My 2nd mistake was buying enough "warm white" Philips brand bulbs to find
that warm white was more like "dull yellow".
Trevor Wilson
Guest
Guest
Thu Jul 07, 2011 3:04 am
keithr wrote:
Quote:
On 7/07/2011 8:58 AM, Trevor Wilson wrote:
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your
abject nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6
years, I've experienced TWO failures. One was caused by a wayward
possum and the other was in a 'trouble' lamp, which I dropped onto a
rock and punctured the tube. The CFLs are used from between a few
minutes per day and several hours per day.
I also have a dozen or so 50 Watt halogen downlights. These are used
VERY infrequently, due to the nonsensically high power consumption.
I've had 7 failures in 6 years. Cost of each downlight is around
$3.00. I have one, 100 Watt tungesten incandescent. It is used less than
1
hour per month and has failed three times in 6 years. Replacement
cost was (last I purchased one) about $4.00. Unfortunately, the
light fitting is unsuitable for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived
in this house, I have replaced twice as many of them, than Halogens.
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your
abject nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6
years, I've experienced TWO failures. One was caused by a wayward
possum and the other was in a 'trouble' lamp, which I dropped onto a
rock and punctured the tube. The CFLs are used from between a few
minutes per day and several hours per day.
I also have a dozen or so 50 Watt halogen downlights. These are used
VERY infrequently, due to the nonsensically high power consumption.
I've had 7 failures in 6 years. Cost of each downlight is around
$3.00. I have one, 100 Watt tungesten incandescent. It is used less than
1
hour per month and has failed three times in 6 years. Replacement
cost was (last I purchased one) about $4.00. Unfortunately, the
light fitting is unsuitable for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived
in this house, I have replaced twice as many of them, than Halogens.
**Zero CFL failures (excepting those that failed from mechanical means) is
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
--
Trevor Wilson
www.rageaudio.com.au
kreed
Guest
Guest
Thu Jul 07, 2011 5:37 am
On Jul 7, 1:03 pm, "Dennis" <den...@blibber.com> wrote:
Quote:
"keithr" <ke...@nowhere.com.au> wrote in message
news:4e1519d7_at_dnews.tpgi.com.au...
On 7/07/2011 8:58 AM, Trevor Wilson wrote:
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years,
I've
experienced TWO failures. One was caused by a wayward possum and the
other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the
tube.
The CFLs are used from between a few minutes per day and several hours
per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour
per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is
unsuitable
for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived in
this house, I have replaced twice as many of them, than Halogens.
My 1st mistake was buying Nelson brand lamps, most crapped out within 12
months, a couple even smoked up.
My 2nd mistake was buying enough "warm white" Philips brand bulbs to find
that warm white was more like "dull yellow".
news:4e1519d7_at_dnews.tpgi.com.au...
On 7/07/2011 8:58 AM, Trevor Wilson wrote:
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years,
I've
experienced TWO failures. One was caused by a wayward possum and the
other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the
tube.
The CFLs are used from between a few minutes per day and several hours
per
day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour
per
month and has failed three times in 6 years. Replacement cost was (last I
purchased one) about $4.00. Unfortunately, the light fitting is
unsuitable
for any other type of lamp.
You have been lucky with your CFLs. Over the 4 years that I have lived in
this house, I have replaced twice as many of them, than Halogens.
My 1st mistake was buying Nelson brand lamps, most crapped out within 12
months, a couple even smoked up.
My 2nd mistake was buying enough "warm white" Philips brand bulbs to find
that warm white was more like "dull yellow".
Warm White is a putrid colour for a lamp, but its getting hard to find
cool white ones (which look a lot better)
John Tserkezis
Guest
Guest
Thu Jul 07, 2011 5:58 am
Trevor Wilson wrote:
Quote:
**Zero CFL failures (excepting those that failed from mechanical means) is
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared to
incandescents.
--
Predicting the future of technology is fraud with peril!
kreed
Guest
Guest
Thu Jul 07, 2011 10:04 am
On Jul 7, 3:58 pm, John Tserkezis
<j...@techniciansyndrome.org.invalid> wrote:
Quote:
Trevor Wilson wrote:
**Zero CFL failures (excepting those that failed from mechanical means) is
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared to
incandescents.
--
Predicting the future of technology is fraud with peril!
**Zero CFL failures (excepting those that failed from mechanical means) is
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared to
incandescents.
--
Predicting the future of technology is fraud with peril!
Problem is that you can't buy typical domestic incandescents now.
Well you can from RS components as "rough service lamps" but they are
as expensive as
CFL's
Trevor Wilson
Guest
Guest
Thu Jul 07, 2011 8:39 pm
John Tserkezis wrote:
Quote:
Trevor Wilson wrote:
**Zero CFL failures (excepting those that failed from mechanical
means) is not "luck". 7 failures of halogens (using SMPS
transformers) is not 'bad luck'. 3 failures of 100 Watt incandescent
is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared
to incandescents.
**Zero CFL failures (excepting those that failed from mechanical
means) is not "luck". 7 failures of halogens (using SMPS
transformers) is not 'bad luck'. 3 failures of 100 Watt incandescent
is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared
to incandescents.
**Six years and counting, for me. I'm happy with that.
--
Trevor Wilson
www.rageaudio.com.au
Metro
Guest
Guest
Fri Jul 08, 2011 12:50 am
"Trevor Wilson" <trevor_at_rageaudio.com.au> wrote in message
news:97k7kqFvj7U3_at_mid.individual.net...
Quote:
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years, I've
experienced TWO failures. One was caused by a wayward possum and the other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the
tube. The CFLs are used from between a few minutes per day and several
hours per day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour
per month and has failed three times in 6 years. Replacement cost was
(last I purchased one) about $4.00. Unfortunately, the light fitting is
unsuitable for any other type of lamp.
--
Trevor Wilson
www.rageaudio.com.au
Obviously you will change the fitting.........
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your abject
nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6 years, I've
experienced TWO failures. One was caused by a wayward possum and the other
was in a 'trouble' lamp, which I dropped onto a rock and punctured the
tube. The CFLs are used from between a few minutes per day and several
hours per day.
I also have a dozen or so 50 Watt halogen downlights. These are used VERY
infrequently, due to the nonsensically high power consumption. I've had 7
failures in 6 years. Cost of each downlight is around $3.00.
I have one, 100 Watt tungesten incandescent. It is used less than 1 hour
per month and has failed three times in 6 years. Replacement cost was
(last I purchased one) about $4.00. Unfortunately, the light fitting is
unsuitable for any other type of lamp.
--
Trevor Wilson
www.rageaudio.com.au
Obviously you will change the fitting.........
Andy Wood
Guest
Guest
Fri Jul 08, 2011 2:45 am
John Tserkezis <jt_at_techniciansyndrome.org.invalid> wrote:
Quote:
Trevor Wilson wrote:
**Zero CFL failures (excepting those that failed from mechanical means) is
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared to
incandescents.
**Zero CFL failures (excepting those that failed from mechanical means) is
not "luck". 7 failures of halogens (using SMPS transformers) is not 'bad
luck'. 3 failures of 100 Watt incandescent is not 'bad luck'.
My mains Voltage hovers at around 245 - 247 VAC most of the time.
Those voltages are typical of what you'll find at our place too.
However, I've noted a high infant mortality rate with CFLs, *IF* they
live past 6 months or so, they're likely to live for the long stretch
(two years and counting on the ones I'm keeping track of).
I've had a typical incandescent last about 6-9 months or so.
Dollar for dollar, those CFL's (the one's that DO last) will need to
last a bloody long time to make up for their increased cost compared to
incandescents.
Many years ago I started writing the date on the base of lamps when I
installed them so that I would have something more than a gut feeling
of how long the things were lasting.
Now, as I replace lamps, I record the information in a simple
spreadsheet with info like brand, type of lamp, where used, date
installed, date replaced, cost, and claimed lifetime. The claimed life
for a CFL can be anywhere between 6,000 and 15,000 hours - it is
usually but not always on the packaging. In the same spreadsheet I
have results for small fluorescents called PL or PL-S lamps that are
not your traditional CFL with electronics crammed into the base of the
lamp (the ballast is in the light fitting, not in the lamp).
To determine if a lamp has lasted for anything like the claimed
lifetime I need to know what percentage of the time they were on,
which often means taking an educated guess, but for some lamps that
were automatically switched on, I have a much better idea. Flawed and
unscientific as this process no doubt is I continue to do it as I find
the results interesting.
Excluding the PL lamps with no electronics to fail, the worst of the
CFLs was a $1.25 cheapie that died at 20% of claimed life, while the
best was as Osram "Duluxstar minitwist" that made it to 133%. I have
another of the same Osram lamps, still in use, that is at 122% today,
but two more died at 26% and 57% respectively, beaten by another of
the $1.25 specials that made it to 68%.
On average, they are lasting to around 60% of claimed life, but I
don't have all that many results to go on.
Andy Wood
woodag_at_trap.ozemail.com.au
Trevor Wilson
Guest
Guest
Fri Jul 08, 2011 3:04 am
Metro wrote:
Quote:
"Trevor Wilson" <trevor_at_rageaudio.com.au> wrote in message
news:97k7kqFvj7U3_at_mid.individual.net...
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your
abject nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6
years, I've experienced TWO failures. One was caused by a wayward
possum and the other was in a 'trouble' lamp, which I dropped onto a
rock and punctured the tube. The CFLs are used from between a few
minutes per day and several hours per day.
I also have a dozen or so 50 Watt halogen downlights. These are used
VERY infrequently, due to the nonsensically high power consumption.
I've had 7 failures in 6 years. Cost of each downlight is around
$3.00. I have one, 100 Watt tungesten incandescent. It is used less than
1
hour per month and has failed three times in 6 years. Replacement
cost was (last I purchased one) about $4.00. Unfortunately, the
light fitting is unsuitable for any other type of lamp.
--
Trevor Wilson
www.rageaudio.com.au
Obviously you will change the fitting.........
news:97k7kqFvj7U3_at_mid.individual.net...
Peter wrote:
Light bulbs used to cost $0.15-$1.50 then we were told it is better
for the environment and our pocket to replace (even working) light
bulbs with new ones that cost $5-$10 although these ones are being
replaced orverseas with even newer ones that are more environmental
and economical at a cost of $20'ish each.
**Idiot. Let's examine some real world facts, as opposed to your
abject nonsense:
In my home, I have around 20 CFLs. MAXIMUM cost was $6.00 (for a high
quality, Philips 23 Watt). Most were much less expensive. In 6
years, I've experienced TWO failures. One was caused by a wayward
possum and the other was in a 'trouble' lamp, which I dropped onto a
rock and punctured the tube. The CFLs are used from between a few
minutes per day and several hours per day.
I also have a dozen or so 50 Watt halogen downlights. These are used
VERY infrequently, due to the nonsensically high power consumption.
I've had 7 failures in 6 years. Cost of each downlight is around
$3.00. I have one, 100 Watt tungesten incandescent. It is used less than
1
hour per month and has failed three times in 6 years. Replacement
cost was (last I purchased one) about $4.00. Unfortunately, the
light fitting is unsuitable for any other type of lamp.
--
Trevor Wilson
www.rageaudio.com.au
Obviously you will change the fitting.........
**Just waiting for a suitable LED replacement.
--
Trevor Wilson
www.rageaudio.com.au
glenbadd
Guest
Guest
Fri Jul 08, 2011 5:25 am
Another factor affecting CFL lifetime is the type of light fitting and
their orientation. If there is little air circulation or heat
conduction the base will get very hot and eventually a component will
fair.
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