|
Home > Archive > Electrical Engineering > July 2007 > Philips calls for a simple switch to reduce energy consumption
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
| Author |
Philips calls for a simple switch to reduce energy consumption
|
|
| georgemathew12@gmail.com 2007-07-08, 9:25 am |
| By partnering with The Alliance for Climate Protection and the global
Live Earth concerts on July 7th 2007, Philips aims to inspire more
than two billion people to take simple steps, such as changing a light
bulb, to lead a more energy efficient life. I saw the details at
http://theanalystmagazine.com/pr/841.htm
| |
| phil-news-nospam@ipal.net 2007-07-13, 9:25 am |
| On Sun, 08 Jul 2007 05:52:48 -0700 georgemathew12@gmail.com wrote:
| By partnering with The Alliance for Climate Protection and the global
| Live Earth concerts on July 7th 2007, Philips aims to inspire more
| than two billion people to take simple steps, such as changing a light
| bulb, to lead a more energy efficient life. I saw the details at
|
| http://theanalystmagazine.com/pr/841.htm
I already have CFLs where CFLs don't cause problems. Once they make some
light bulbs that don't hurt my eyes, then I can also put those in places
where I use task lighting for extended (e.g. more than 10 minutes) times,
such as the kitchen. FYI: it's NOT the flicker ... it's the spectrum.
--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2007-07-13-0722@ipal.net |
|------------------------------------/-------------------------------------|
| |
| John Gilmer 2007-07-13, 1:25 pm |
|
> I already have CFLs where CFLs don't cause problems. Once they make some
> light bulbs that don't hurt my eyes, then I can also put those in places
> where I use task lighting for extended (e.g. more than 10 minutes) times,
> such as the kitchen. FYI: it's NOT the flicker ... it's the spectrum.
Perhaps you should hold out for the LED lamps.
Because the last for a LONG time, once they "catch on" a good portion of
sales will be to folks who don't HAVE to replace a working LED but want to
because the newer model has better color.
Right now the CFs still wear out. My home is now nearly saturated with CFs
but I still have to buy them occasionally just to cover burn outs.
>
| |
| Andrew Gabriel 2007-07-13, 5:25 pm |
| In article <bcGdndwP8u0_AgrbnZ2dnUVZ_hCdnZ2d@nni.com>,
"John Gilmer" <gilmer@nni.com> writes:
>
>
>
> Perhaps you should hold out for the LED lamps.
They use much the same phosphors as fluorescent lamps.
> Because the last for a LONG time, once they "catch on" a good portion of
> sales will be to folks who don't HAVE to replace a working LED but want to
> because the newer model has better color.
Their colours are currently appauling. They pick the colour which
gives the highest lumen/watt so they can claim 1% more than their
competitor.
> Right now the CFs still wear out. My home is now nearly saturated with CFs
> but I still have to buy them occasionally just to cover burn outs.
I hate to tell you, but LEDs used for lighting (as opposted to low
power LED indicators) also wear out. The phosphor output drops off,
but also you get complete failures at a rate governed by the
operating temperature, but at very much lower operating temperatures
than for CFLs or filament lamps.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
| |
| Don Kelly 2007-07-14, 3:25 am |
| ----------------------------
<phil-news-nospam@ipal.net> wrote in message
news:f77qva12s92@news5.newsguy.com...
> On Sun, 08 Jul 2007 05:52:48 -0700 georgemathew12@gmail.com wrote:
>
> | By partnering with The Alliance for Climate Protection and the global
> | Live Earth concerts on July 7th 2007, Philips aims to inspire more
> | than two billion people to take simple steps, such as changing a light
> | bulb, to lead a more energy efficient life. I saw the details at
> |
> | http://theanalystmagazine.com/pr/841.htm
>
> I already have CFLs where CFLs don't cause problems. Once they make some
> light bulbs that don't hurt my eyes, then I can also put those in places
> where I use task lighting for extended (e.g. more than 10 minutes) times,
> such as the kitchen. FYI: it's NOT the flicker ... it's the spectrum.
-----------------------------
They are available in good spectrums for reading and other tasks- as with
regular fluorescents they may be a bit more expensive than the cheapest
"cool white" bulbs.
--
Don Kelly dhky@shawcross.ca
remove the X to answer
>
> --
> |---------------------------------------/----------------------------------|
> | Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below
> |
> | first name lower case at ipal.net / spamtrap-2007-07-13-0722@ipal.net
> |
> |------------------------------------/-------------------------------------|
| |
| John Gilmer 2007-07-14, 9:25 am |
|
> I hate to tell you, but LEDs used for lighting (as opposted to low
> power LED indicators) also wear out. The phosphor output drops off,
> but also you get complete failures at a rate governed by the
> operating temperature, but at very much lower operating temperatures
> than for CFLs or filament lamps.
As I understand the present "technology" the LEDs are actually UV LEDs with
phosphors to convert to visible light.
But, but ... If you end up with a array of LEDs why not just but a mix of
various colors together. You can make up any color you want. It should
be more efficient than the UV/phosphor LED or am I missing something?
| |
| phil-news-nospam@ipal.net 2007-07-16, 5:25 pm |
| On Fri, 13 Jul 2007 11:47:27 -0300 John Gilmer <gilmer@nni.com> wrote:
|
|
|> I already have CFLs where CFLs don't cause problems. Once they make some
|> light bulbs that don't hurt my eyes, then I can also put those in places
|> where I use task lighting for extended (e.g. more than 10 minutes) times,
|> such as the kitchen. FYI: it's NOT the flicker ... it's the spectrum.
|
| Perhaps you should hold out for the LED lamps.
Maybe. LEDs have the same issue, at least for now.
| Because the last for a LONG time, once they "catch on" a good portion of
| sales will be to folks who don't HAVE to replace a working LED but want to
| because the newer model has better color.
If they fix the color issue, great.
| Right now the CFs still wear out. My home is now nearly saturated with CFs
| but I still have to buy them occasionally just to cover burn outs.
I only have 5 in place and have had them only for a year and a half.
All still work fine. 4 of them are outside in the cold (in winter) and
have had no trouble other than taking a few minutes to warm up to give
full brightness (not problem enough to switch back).
--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2007-07-16-1616@ipal.net |
|------------------------------------/-------------------------------------|
| |
| phil-news-nospam@ipal.net 2007-07-16, 5:25 pm |
| On 13 Jul 2007 20:54:03 GMT Andrew Gabriel <andrew@cucumber.demon.co.uk> wrote:
| In article <bcGdndwP8u0_AgrbnZ2dnUVZ_hCdnZ2d@nni.com>,
| "John Gilmer" <gilmer@nni.com> writes:
|>
|>
|>> I already have CFLs where CFLs don't cause problems. Once they make some
|>> light bulbs that don't hurt my eyes, then I can also put those in places
|>> where I use task lighting for extended (e.g. more than 10 minutes) times,
|>> such as the kitchen. FYI: it's NOT the flicker ... it's the spectrum.
|>
|> Perhaps you should hold out for the LED lamps.
|
| They use much the same phosphors as fluorescent lamps.
Except for the ones made from multiple LED colors. Both have the issues.
|> Because the last for a LONG time, once they "catch on" a good portion of
|> sales will be to folks who don't HAVE to replace a working LED but want to
|> because the newer model has better color.
|
| Their colours are currently appauling. They pick the colour which
| gives the highest lumen/watt so they can claim 1% more than their
| competitor.
|
|> Right now the CFs still wear out. My home is now nearly saturated with CFs
|> but I still have to buy them occasionally just to cover burn outs.
|
| I hate to tell you, but LEDs used for lighting (as opposted to low
| power LED indicators) also wear out. The phosphor output drops off,
| but also you get complete failures at a rate governed by the
| operating temperature, but at very much lower operating temperatures
| than for CFLs or filament lamps.
It's obvious they wear out. Replacement LEDs are available in stores.
--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2007-07-16-1619@ipal.net |
|------------------------------------/-------------------------------------|
| |
| phil-news-nospam@ipal.net 2007-07-16, 5:25 pm |
| On Fri, 13 Jul 2007 18:06:28 -0300 John Gilmer <gilmer@nni.com> wrote:
|
|
|> I hate to tell you, but LEDs used for lighting (as opposted to low
|> power LED indicators) also wear out. The phosphor output drops off,
|> but also you get complete failures at a rate governed by the
|> operating temperature, but at very much lower operating temperatures
|> than for CFLs or filament lamps.
|
| As I understand the present "technology" the LEDs are actually UV LEDs with
| phosphors to convert to visible light.
|
| But, but ... If you end up with a array of LEDs why not just but a mix of
| various colors together. You can make up any color you want. It should
| be more efficient than the UV/phosphor LED or am I missing something?
If there are enough different wavelengths, that might work for making light
that is suitably white and with a continuous enough spectrum to really act
like white. I've seen 22 different wavelengths in various catalogs. That
might be enough to do it. Adjusting the levels of each wavelength to get a
nice white might be a lot harder.
--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2007-07-16-1621@ipal.net |
|------------------------------------/-------------------------------------|
| |
| phil-news-nospam@ipal.net 2007-07-16, 5:25 pm |
| On Sat, 14 Jul 2007 04:07:20 GMT Don Kelly <dhky@shaw.ca> wrote:
| ----------------------------
| <phil-news-nospam@ipal.net> wrote in message
| news:f77qva12s92@news5.newsguy.com...
|> On Sun, 08 Jul 2007 05:52:48 -0700 georgemathew12@gmail.com wrote:
|>
|> | By partnering with The Alliance for Climate Protection and the global
|> | Live Earth concerts on July 7th 2007, Philips aims to inspire more
|> | than two billion people to take simple steps, such as changing a light
|> | bulb, to lead a more energy efficient life. I saw the details at
|> |
|> | http://theanalystmagazine.com/pr/841.htm
|>
|> I already have CFLs where CFLs don't cause problems. Once they make some
|> light bulbs that don't hurt my eyes, then I can also put those in places
|> where I use task lighting for extended (e.g. more than 10 minutes) times,
|> such as the kitchen. FYI: it's NOT the flicker ... it's the spectrum.
|
| -----------------------------
| They are available in good spectrums for reading and other tasks- as with
| regular fluorescents they may be a bit more expensive than the cheapest
| "cool white" bulbs.
I've never seen any with the needed continuous spectra.
--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2007-07-16-1622@ipal.net |
|------------------------------------/-------------------------------------|
|
|
|
|
|