What's the normal failure mode for low energy lamps? I have (had!) an
Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
no flickering, no dimming - it just went out!
It's temporarily replaced with a 40W candle bulb which was lying about
downstairs until tomorrow.

--
Frank Erskine

"Frank Erskine" wrote in message
...
What's the normal failure mode for low energy lamps? I have (had!) an
Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
no flickering, no dimming - it just went out!
It's temporarily replaced with a 40W candle bulb which was lying about
downstairs until tomorrow.

The last time I dissected one there were one or two bulging electrolytics
that looked as if they were underrated.
At 50p each from Morrosons, I am in no hurry to waste time repairing one.

--

Graham.
%Profound_observation%

Graham wrote:
"Frank Erskine" wrote in message
...
What's the normal failure mode for low energy lamps? I have (had!) an
Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
no flickering, no dimming - it just went out!
It's temporarily replaced with a 40W candle bulb which was lying about
downstairs until tomorrow.

The last time I dissected one there were one or two bulging electrolytics
that looked as if they were underrated.
At 50p each from Morrosons, I am in no hurry to waste time repairing one.

49.5p actually, if you are referring to the buy-one-get-one-free 99p
offers that come round regularly. I'm rather impressed with these
bulbs - reasonably quick to get to full output, which is pleasingly
white. Can hardly go wrong for 50p ;-)

--
"He who lives by the sword laughs last."

The message .com
from contains these words:

At 50p each from Morrosons, I am in no hurry to waste time repairing one.

49.5p actually, if you are referring to the buy-one-get-one-free 99p
offers that come round regularly. I'm rather impressed with these
bulbs - reasonably quick to get to full output, which is pleasingly
white. Can hardly go wrong for 50p ;-)

Funny that. I recent bought a few from Morrisons. The only one used so
far has a delay in excess of 2 seconds before it shows any light at all.
By far the worst of all the low energy bulbs I have used since I
switched to low energy a decade or so ago.

--
Roger Chapman

Roger wrote:
The message .com
from contains these words:

At 50p each from Morrosons, I am in no hurry to waste time repairing one.

49.5p actually, if you are referring to the buy-one-get-one-free 99p
offers that come round regularly. I'm rather impressed with these
bulbs - reasonably quick to get to full output, which is pleasingly
white. Can hardly go wrong for 50p ;-)

Funny that. I recent bought a few from Morrisons. The only one used so
far has a delay in excess of 2 seconds before it shows any light at all.
By far the worst of all the low energy bulbs I have used since I
switched to low energy a decade or so ago.

A bad batch or bad leccy, perhaps ? I've not had any that have been
that sluggish, although to be fair my own reaction times may be so slow
as to render any delay unnoticeable...

--
"Fact is solidified opinion"

The message .com
from contains these words:

Funny that. I recent bought a few from Morrisons. The only one used so
far has a delay in excess of 2 seconds before it shows any light at all.
By far the worst of all the low energy bulbs I have used since I
switched to low energy a decade or so ago.

A bad batch or bad leccy, perhaps ? I've not had any that have been
that sluggish, although to be fair my own reaction times may be so slow
as to render any delay unnoticeable...

I hope it is not a bad batch as the delay is long enough to be tiresome.
I must try one of the others sometime.

The delay is only when it is cold. Turn it off and on again almost
immediately then it responds promptly.

I have a memory like a sieve but I think I have only had 3 or 4 failures
so far. The failure the bulb in question replaced was a bit curious. It
faded badly and when I went to take it out I actually burnt my hand on
it so there must have been some sort of short.

--
Roger Chapman

In article ,
Frank Erskine writes:
What's the normal failure mode for low energy lamps? I have (had!) an
Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
no flickering, no dimming - it just went out!
It's temporarily replaced with a 40W candle bulb which was lying about
downstairs until tomorrow.

Some months back, I wrote a whole section on this in the wikipedia
entry for fluorscent lamps...
http://en.wikipedia.org/wiki/Fluores..._end _of_life

If the tube ends are blackened, then it's the first choice "Emission
mix runs out", otherwise it's probably the second choice "Failure of
integral ballast electronics".

--
Andrew Gabriel

What's the normal failure mode for low energy lamps? I have (had!) an
Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
no flickering, no dimming - it just went out!

There are many failure modes. Simply not working at all is the most common,
IME.

Christian.

On Tue, 5 Sep 2006 14:32:45 +0100, "Christian McArdle"
wrote:

| What's the normal failure mode for low energy lamps? I have (had!) an
| Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
| no flickering, no dimming - it just went out!
|
|There are many failure modes. Simply not working at all is the most common,
|IME.

IME they do not fail at all, well *very* rarely. After running the whole
house on low energy bulbs except for a few long flourescents, for mumble
years I have last week had my first failure, a 23 watt bulb at the top of
the stairs, it just stopped working. Highly chuffed with the long life
of these lamps, IME well in excess of the advertised 10,000 hours.
--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.

Dave Fawthrop wrote:
On Tue, 5 Sep 2006 14:32:45 +0100, "Christian McArdle"
wrote:

| What's the normal failure mode for low energy lamps? I have (had!) an
| Osram Dulux 20W/827 lamp just above me and all of a sudden it failed -
| no flickering, no dimming - it just went out!
|
|There are many failure modes. Simply not working at all is the most common,
|IME.

IME they do not fail at all, well *very* rarely. After running the whole
house on low energy bulbs except for a few long flourescents, for mumble
years I have last week had my first failure, a 23 watt bulb at the top of
the stairs, it just stopped working. Highly chuffed with the long life
of these lamps, IME well in excess of the advertised 10,000 hours.


My experience is they either are DOA or fail within a few days (had 3
like that out of half a dozen so far), or just keep going.

Dave Fawthrop wrote:


IME they do not fail at all, well *very* rarely. After running the whole
house on low energy bulbs except for a few long flourescents, for mumble
years I have last week had my first failure, a 23 watt bulb at the top of
the stairs, it just stopped working. Highly chuffed with the long life
of these lamps, IME well in excess of the advertised 10,000 hours.
--

Just out of interest, how did you dispose of the old bulb as you aren't
supposed to bin them but there again I am hardly likely to all the way
to the dump with a broken low enegy bulb.

Kevin

On 5 Sep 2006 07:45:51 -0700, "Kev" wrote:

|
|Dave Fawthrop wrote:
|
|
| IME they do not fail at all, well *very* rarely. After running the whole
| house on low energy bulbs except for a few long flourescents, for mumble
| years I have last week had my first failure, a 23 watt bulb at the top of
| the stairs, it just stopped working. Highly chuffed with the long life
| of these lamps, IME well in excess of the advertised 10,000 hours.
| --
|
|Just out of interest, how did you dispose of the old bulb as you aren't
|supposed to bin them but there again I am hardly likely to all the way
|to the dump with a broken low enegy bulb.

Just binned it. Our local council does not provide special facilities, not
even at the local tip.

--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.

The message
from Dave Fawthrop contains these words:

Just binned it. Our local council does not provide special facilities, not
even at the local tip.

Really? I thought they were obliged to.

--
Skipweasel
Pay no attention to that man behind the curtain.

Kev wrote:
Dave Fawthrop wrote:

IME they do not fail at all, well *very* rarely. After running the whole
house on low energy bulbs except for a few long flourescents, for mumble
years I have last week had my first failure, a 23 watt bulb at the top of
the stairs, it just stopped working. Highly chuffed with the long life
of these lamps, IME well in excess of the advertised 10,000 hours.
--

Just out of interest, how did you dispose of the old bulb as you aren't
supposed to bin them but there again I am hardly likely to all the way
to the dump with a broken low enegy bulb.

Kevin

well theres more mercury in my moth than in a few thousand CFL's.

Do you think they will need a permit to bury me?

The Natural Philosopher wrote:
well theres more mercury in my moth than in a few thousand CFL's.
^^^^
Are your teeth a bit moth-eaten then?

Do you think they will need a permit to bury me?

No, but crematoria are starting to have to filter the mercury:
http://news.bbc.co.uk/1/hi/health/4160895.stm



--
Spamtrap in use
To email replace 127.0.0.1 with btinternet dot com

The message
from The Natural Philosopher contains these words:

Do you think they will need a permit to bury me?

No, but they need one to cremate you.

Why on earth the put expensive filters on the exhaust instead of taking
the fillings out first is beyond me.

--
Skipweasel
Pay no attention to that man behind the curtain.

On 2006-09-05 17:59:04 +0100, The Natural Philosopher said:

Kev wrote:
Dave Fawthrop wrote:

IME they do not fail at all, well *very* rarely. After running the whole
house on low energy bulbs except for a few long flourescents, for mumble
years I have last week had my first failure, a 23 watt bulb at the top of
the stairs, it just stopped working. Highly chuffed with the long life
of these lamps, IME well in excess of the advertised 10,000 hours.
--

Just out of interest, how did you dispose of the old bulb as you aren't
supposed to bin them but there again I am hardly likely to all the way
to the dump with a broken low enegy bulb.

Kevin

well theres more mercury in my moth than in a few thousand CFL's.

Do you think they will need a permit to bury me?

You should get them replaced... it can make you go mad, you know....

On 2006-09-05 15:45:51 +0100, "Kev" said:


Dave Fawthrop wrote:


IME they do not fail at all, well *very* rarely. After running the whole
house on low energy bulbs except for a few long flourescents, for mumble
years I have last week had my first failure, a 23 watt bulb at the top of
the stairs, it just stopped working. Highly chuffed with the long life
of these lamps, IME well in excess of the advertised 10,000 hours.
--

Just out of interest, how did you dispose of the old bulb as you aren't
supposed to bin them but there again I am hardly likely to all the way
to the dump with a broken low enegy bulb.

Kevin

Oh no you must, regardless of how much fuel is used. It's part of the
"eco" thing.