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Default Halogen to be banned

...."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....
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Yes not new news, just the timescale is now known, how is it then that I can
still buy tungsten bulbs in the high street?
I get the distinct impression that like lots of things, the law is just
ignored when it suits people.
Brian

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"ss" wrote in message
...
..."Sales of halogen lightbulbs are to be banned in the UK from September,
with fluorescent lights to follow, under government climate change
plans"....



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On 09/06/2021 10:08, Brian Gaff (Sofa) wrote:
Yes not new news, just the timescale is now known, how is it then that I can
still buy tungsten bulbs in the high street?
I get the distinct impression that like lots of things, the law is just
ignored when it suits people.
Brian


Many tungsten were sold on ebay as `heaters`the wording got them around
the restrictions.
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ss quoted:

"Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"


If we're to believe they're taking this "Nett Zero" energy policy
seriously, I'd much rather hear an announcement that were going to build
another half a dozen nukes, than banning some light bulbs that most
people have already abandoned ...

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On Wed, 9 Jun 2021 10:40:48 +0100, ss wrote:

On 09/06/2021 10:08, Brian Gaff (Sofa) wrote:
Yes not new news, just the timescale is now known, how is it then that I can
still buy tungsten bulbs in the high street?
I get the distinct impression that like lots of things, the law is just
ignored when it suits people.
Brian


Many tungsten were sold on ebay as `heaters`the wording got them around
the restrictions.


Which is probably a more accurate description of them, given most of
the energy going into them is converted into heat!

Cheers, T i m



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T i m wrote:
On Wed, 9 Jun 2021 10:40:48 +0100, ss wrote:

On 09/06/2021 10:08, Brian Gaff (Sofa) wrote:
Yes not new news, just the timescale is now known, how is it then that I can
still buy tungsten bulbs in the high street?
I get the distinct impression that like lots of things, the law is just
ignored when it suits people.
Brian


Many tungsten were sold on ebay as `heaters`the wording got them around
the restrictions.


Which is probably a more accurate description of them, given most of
the energy going into them is converted into heat!

Same applies to LEDs, even the best are still only in the 30% to 40%
sort of area if you include the losses in the associated drivers etc.
Ulitimately of course *all* the energy ends up as heat.

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"ss" wrote in message
...
..."Sales of halogen lightbulbs are to be banned in the UK from September,
with fluorescent lights to follow, under government climate change
plans"....


good

that way they'll be forded to make a LED bulb for PL-S format bulbs, which
are currently next to impossible to find

Expecting us to replace 50 light fittings as the alternative here is not a
viable (or ecological) alterative






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tim... wrote:

they'll be forded to make a LED bulb for PL-S format bulbs, which are
currently next to impossible to find


I got some chinesium ones from amazon couple of years ago, when they
were hard to finf here, they're still working, but

https://www.any-lamp.co.uk/led-lights/led-cfl/pl-s-led-bulbs

And I doubt anyone would force anyone to manufacture them if they
weren't already, you could just buy new fittings ...
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On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.

--
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"Andy Burns" wrote in message
...
tim... wrote:

they'll be forded to make a LED bulb for PL-S format bulbs, which are
currently next to impossible to find


I got some chinesium ones from amazon couple of years ago, when they were
hard to finf here, they're still working, but

https://www.any-lamp.co.uk/led-lights/led-cfl/pl-s-led-bulbs


Unfortunately they are the "longer" form and we need the shorter ones


And I doubt anyone would force anyone to manufacture them if they weren't
already, you could just buy new fittings ...


but that's not realistic in a "corporate" environment when you have 50 of
them in situ (that's 50 lamp fittings = 100 bulbs)

This is no diy job, the management wouldn't allow it.

and getting a *qualified* man in to do it is going to add thousands to the
bill, so that we can save pennies in electricity costs (we already use 7W
CFL bulbs)

These are a standard bulkhead light of the type where there must be 100s of
thousands already installed







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On Wed, 9 Jun 2021 12:20:16 +0100, nightjar wrote:

On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.


Me too, except for my bedside lamp which is halogen for colour
rendition. Any comments on reading under a 230V LED spotlight? Would
you go for cool, daylight or warm?
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On 09/06/2021 11:18, Andy Burns wrote:
ss quoted:

"Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"


If we're to believe they're taking this "Nett Zero" energy policy
seriously, I'd much rather hear an announcement that were going to build
another half a dozen nukes, than banning some light bulbs that most
people have already abandoned ...


And fluorescent tubes are reasonably efficient in terms of
light output vs power in. They give a much better light
for situations where you need to see fine detail.

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In article , tim...
wrote:


"Andy Burns" wrote in message
...
tim... wrote:

they'll be forded to make a LED bulb for PL-S format bulbs, which are
currently next to impossible to find


I got some chinesium ones from amazon couple of years ago, when they
were hard to finf here, they're still working, but

https://www.any-lamp.co.uk/led-lights/led-cfl/pl-s-led-bulbs


Unfortunately they are the "longer" form and we need the shorter ones



And I doubt anyone would force anyone to manufacture them if they
weren't already, you could just buy new fittings ...


but that's not realistic in a "corporate" environment when you have 50 of
them in situ (that's 50 lamp fittings = 100 bulbs)


This is no diy job, the management wouldn't allow it.


and getting a *qualified* man in to do it is going to add thousands to
the bill, so that we can save pennies in electricity costs (we already
use 7W CFL bulbs)


These are a standard bulkhead light of the type where there must be 100s
of thousands already installed



There is also the theatre where halogen lamps are still in use in
significant quantities.


--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle
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On 09/06/2021 09:39, ss wrote:
Sales of halogen lightbulbs are to be banned in the UK from September


Subject to some important details such as:

"HL R7 halogens will remain available on the market, and some
fluorescents such as T5s.

Exemptions will be in place for lamps designed and marketed specifically
for scene-lighting use in film studios, TV studios, and photographic
studios, or for stage-lighting use in theatres or other entertainment
events."

And a source does make it easier to check the details. e.g.

https://www.gov.uk/government/news/e...cleaner-future

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"nightjar" wrote in message
...
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.


Likewise. When we bought our house, the previous people had installed a grid
of GU10 fittings to light the kitchen and two of the bedrooms. The kitchen
had LED GU10s, although we replaced some of those with Philips Hue bulbs
that we already had, and moved the ordinary LED ones into one of the
bedrooms because both of those had tungsten GU10 - each bedroom used about
500 W (10x 50 W bulbs) so the saving by using LED instead was significant.

A few fittings were transformer-fed 12 V, so I converted those to normal
mains-fed because the mains LED GU10s are/were a lot cheaper than the 12 V
equivalents that fit in the same ceiling fitting.

The only rooms that aren't lit by LED now are an en-suite bathroom which
still has a grid of 12 V tungstens (I'd need to go into the loft and change
the fittings from there, because the lens on the front is glued to the ring
of the fitting and can only be changed from above) and the garage which is
lit by 5 ft fluorescent tubes. Oh, and a bedside light which is
touch-sensitive and can only be used with tungstens: my father-in-law, an
electrican, said that LEDs or CFLs would burn out the thyristor.

It seems a shame to throw away the perfectly serviceable tungsten bulbs, but
I can't see us ever using them, apart from the 60 W bayonet one for that
bedside lamp.


The real problem is light fittings which use various esoteric bulbs. Until
about 20 years ago, just about every light, whether pendant, batten, wall or
table lamp, used large bayonet. Then we started to get poncy light fittings
which used SES, SBC, LES - or LBC if you were lucky.

I know we are unusual in the UK in using LBC as the (former) standard, and
that even 220 V Europe uses LES (I'd thought that 240 V implied bayonet and
120 V implied Edison screw, but it's not as simple as that!). I still think
that bayonet is better than screw in terms of speed of changing (push, twist
slightly, remove) and in terms of not corroding into the fitting. It's a
shame that Philips Hue are not available in SBC - we've had to buy lots of
SES to SBC adaptors to rooms with SBC fittings where we want the
controllability of Hue. And the quality of the Edison screw part of those
converters is often very dodgy: we bought one batch where the act of
screwing in a bulb compressed the centre spring terminal in such as way that
it touched the screwed ring of the bulb as well as its centre contact -
bang! Those went straight back and I got Amazon to remove them from sale as
not fit for purpose.



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In message , nightjar
writes
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I
have long converted everything to LED.


Hmm.. I have about 25 twin 5' florries in my workshop in 4 switched
banks. This may be the moment to do the LED conversion.


--
Tim Lamb
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"Scott" wrote in message
...
On Wed, 9 Jun 2021 12:20:16 +0100, nightjar wrote:

On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.


Me too, except for my bedside lamp which is halogen for colour
rendition. Any comments on reading under a 230V LED spotlight? Would
you go for cool, daylight or warm?


We tend to use Philips Hue for bedside lamps, and these can be set to
anything from cool shady daylight (probably about 10000 K) to very warm
tungsten (about 2000 K). I find that a sunlight temperature (about 4000-5000
K) is a good compromise. Supposedly warmer light than that is better for
reading in an evening, so as not to stimulate the body to produce melatonin
which can cause problems getting to sleep because the body sees it as
daylight rather than "time to feel sleepy".

In the kitchen and in my study, we use MiniSun GU10s which are about 6000K -
just slightly cooler than LED bulbs which are sold as "daylight".

I've not encountered any LED bulbs which have bad colour rendition, though I
bet if you looked at the spectrum of an LED bulb (whether warm, daylight or
cool) you'd find various absorption lines and emission lines, whereas
tungsten is a more continuous spectrum. Certain shades of red tend to be the
ones than look darker than they should under LED, by comparison with natural
sunlight.

I took a series of photos of a standard coloured test picture under a
variety of lights (fluorescent tube, daylight CFL bulb, tungsten,
warm/day/cool LED, sunlight, shady outdoors) with my camera white-balanced
from a sheet of white paper under each light. The results were pretty
similar, apart from a pillar-box red which came out a bit dark under LED and
much darker under fluorescent.

https://i.postimg.cc/RCnFcqfM/daylight.jpg
https://i.postimg.cc/brbw8F8G/daylight-CFL.jpg
https://i.postimg.cc/W3d4Y1Hw/Led.jpg
https://i.postimg.cc/76jZFyv8/white-fluor.jpg

I'm not sure whether "daylight" (the first) was sunlight or shade, or what
colour the LED was - probably daylight coloured. The "white-fluor" is strip
light, and I presume it was cooler and not warm-white.

Note the different rendition of the red panel on the box of screws to the
left of the face.

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On 09/06/2021 14:06, Tim Lamb wrote:
In message , nightjar
writes
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government
climate change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I
have long converted everything to LED.


Hmm.. I have about 25 twin 5' florries in my workshop in 4 switched
banks. This may be the moment to do the LED conversion.



You have plenty of time to find 50 round tuits given they'll be phased
out "from Sept 2023 onwards"

--
Robin
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In article ,
Scott wrote:
On Wed, 9 Jun 2021 12:20:16 +0100, nightjar wrote:


On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.


Me too, except for my bedside lamp which is halogen for colour
rendition. Any comments on reading under a 230V LED spotlight? Would
you go for cool, daylight or warm?


Don't think reading is critical colour temperature wise. Unlike, say,
matching colours.

I've got a Lidl LED desk light where you can select warm normal or cool.

But how an LED appears, colour temperature wise, does not guarantee
continuous spectrum light as you tend to get with halogen.

--
*I don't believe in astrology. I am a Sagittarius and we're very skeptical.

Dave Plowman London SW
To e-mail, change noise into sound.
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In article ,
charles wrote:
In article , tim...
wrote:



"Andy Burns" wrote in message
...
tim... wrote:

they'll be forded to make a LED bulb for PL-S format bulbs, which are
currently next to impossible to find

I got some chinesium ones from amazon couple of years ago, when they
were hard to finf here, they're still working, but

https://www.any-lamp.co.uk/led-lights/led-cfl/pl-s-led-bulbs


Unfortunately they are the "longer" form and we need the shorter ones



And I doubt anyone would force anyone to manufacture them if they
weren't already, you could just buy new fittings ...


but that's not realistic in a "corporate" environment when you have 50 of
them in situ (that's 50 lamp fittings = 100 bulbs)


This is no diy job, the management wouldn't allow it.


and getting a *qualified* man in to do it is going to add thousands to
the bill, so that we can save pennies in electricity costs (we already
use 7W CFL bulbs)


These are a standard bulkhead light of the type where there must be 100s
of thousands already installed



There is also the theatre where halogen lamps are still in use in
significant quantities.



LEDs should make the TV racks man's life easier. Not the same change in
colour temperature when dimmed. And give the AC a better chance of coping.

--
*Does fuzzy logic tickle? *

Dave Plowman London SW
To e-mail, change noise into sound.


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On 09/06/2021 13:43, charles wrote:

There is also the theatre where halogen lamps are still in use in
significant quantities.

And vehicle headlights :-)

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In article ,
Tim Lamb wrote:
In message , nightjar
writes
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I
have long converted everything to LED.


Hmm.. I have about 25 twin 5' florries in my workshop in 4 switched
banks. This may be the moment to do the LED conversion.


I've still got florries lighting worktops under the cupboards in the
kitchen. Can you now get LEDs that would give as even an illumination? If
so, I'd be tempted to change if a dimming electronic ballast fails.
They're probably obsolete now.


--
*Women who seek to be equal to men lack ambition.

Dave Plowman London SW
To e-mail, change noise into sound.
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On 09/06/2021 14:25, NY wrote:

We tend to use Philips Hue for bedside lamps, and these can be set to
anything from cool shady daylight (probably about 10000 K) to very
warm tungsten (about 2000 K). I find that a sunlight temperature
(about 4000-5000 K) is a good compromise. Supposedly warmer light than
that is better for reading in an evening, so as not to stimulate the
body to produce melatonin which can cause problems getting to sleep
because the body sees it as daylight rather than "time to feel sleepy".

I doubt LEDs will work in our John Lewis 'touch sensitive/three level'
bedside lamps.

(I notice the current version on their website¬* takes an LED bulb)

I'll start stockpiling spare halogens for ours now....
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In article , Dave Plowman (News)
wrote:
In article , charles
wrote:
In article , tim...
wrote:



"Andy Burns" wrote in message
...
tim... wrote:

they'll be forded to make a LED bulb for PL-S format bulbs, which
are currently next to impossible to find

I got some chinesium ones from amazon couple of years ago, when
they were hard to finf here, they're still working, but

https://www.any-lamp.co.uk/led-lights/led-cfl/pl-s-led-bulbs


Unfortunately they are the "longer" form and we need the shorter ones



And I doubt anyone would force anyone to manufacture them if they
weren't already, you could just buy new fittings ...


but that's not realistic in a "corporate" environment when you have
50 of them in situ (that's 50 lamp fittings = 100 bulbs)


This is no diy job, the management wouldn't allow it.


and getting a *qualified* man in to do it is going to add thousands
to the bill, so that we can save pennies in electricity costs (we
already use 7W CFL bulbs)


These are a standard bulkhead light of the type where there must be
100s of thousands already installed



There is also the theatre where halogen lamps are still in use in
significant quantities.



LEDs should make the TV racks man's life easier. Not the same change in
colour temperature when dimmed. And give the AC a better chance of coping.



I ws thinking about the capital cost of replacing said fixtures.

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle
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On Wed, 09 Jun 2021 15:16:08 +0100, "Dave Plowman (News)"
wrote:

In article ,
Scott wrote:
On Wed, 9 Jun 2021 12:20:16 +0100, nightjar wrote:


On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....

Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.


Me too, except for my bedside lamp which is halogen for colour
rendition. Any comments on reading under a 230V LED spotlight? Would
you go for cool, daylight or warm?


Don't think reading is critical colour temperature wise. Unlike, say,
matching colours.


I thought contrast between the characters and the page was important.
I had a neighbour who had macular degeneration and she found that CFL
lamps made it very difficult to see, likewise sodium lamps outside.

I've got a Lidl LED desk light where you can select warm normal or cool.


Which is better for desk work?

But how an LED appears, colour temperature wise, does not guarantee
continuous spectrum light as you tend to get with halogen.


Yes, this seems to be the case. Do you think price makes a difference
or is it a function of the technology?


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On Wed, 09 Jun 2021 15:21:50 +0100, "Dave Plowman (News)"
wrote:

In article ,
Tim Lamb wrote:
In message , nightjar
writes
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....

Apart from a few, rarely used, lamps that have yet to be changed, I
have long converted everything to LED.


Hmm.. I have about 25 twin 5' florries in my workshop in 4 switched
banks. This may be the moment to do the LED conversion.


I've still got florries lighting worktops under the cupboards in the
kitchen. Can you now get LEDs that would give as even an illumination? If
so, I'd be tempted to change if a dimming electronic ballast fails.
They're probably obsolete now.

Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.
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"Scott" wrote in message
...
On Wed, 9 Jun 2021 12:20:16 +0100, nightjar wrote:

On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


Apart from a few, rarely used, lamps that have yet to be changed, I have
long converted everything to LED.


Me too, except for my bedside lamp which is halogen for colour
rendition.


I put the CFL back in

5W LED is just too damned bright to be turning on whilst you are sleepy

makes of LED bulbs really ought to think about this





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On Wed, 09 Jun 2021 15:57:24 +0100, Scott
wrote:

snip

Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


I've *just* picked up a high output 5' LED florry replacement for a
fitting in the study / workshop but the fitting is electronic so I'm
going to have to bypass all the 'guts'.

The main reason for doing it isn't (primarily) the light but the hope
it will get rid of the mains hum ... ;-(

Cheers, T i m
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On Wed, 09 Jun 2021 16:11:48 +0100, T i m wrote:

On Wed, 09 Jun 2021 15:57:24 +0100, Scott
wrote:

snip

Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


I've *just* picked up a high output 5' LED florry replacement for a
fitting in the study / workshop but the fitting is electronic so I'm
going to have to bypass all the 'guts'.


Did it not come with a replacement 'starter', which just shorts out
the starter unit or does this only work with non-electronic ballasts
(as mine was)?

The main reason for doing it isn't (primarily) the light but the hope
it will get rid of the mains hum ... ;-(


It achieved that.
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In article ,
Scott wrote:
I thought contrast between the characters and the page was important.
I had a neighbour who had macular degeneration and she found that CFL
lamps made it very difficult to see, likewise sodium lamps outside.


Low pressure sodium, yes. As that is very narrow spectrum. I'm surprised
any domestic light made much difference. Except, of course CFL, claiming
to be much brighter than they were. So if she substituted a claimed 60
watt equivalent, it was likely a lot dimmer.

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In article ,
Scott wrote:
On Wed, 09 Jun 2021 15:21:50 +0100, "Dave Plowman (News)"
wrote:


In article ,
Tim Lamb wrote:
In message , nightjar
writes
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....

Apart from a few, rarely used, lamps that have yet to be changed, I
have long converted everything to LED.


Hmm.. I have about 25 twin 5' florries in my workshop in 4 switched
banks. This may be the moment to do the LED conversion.


I've still got florries lighting worktops under the cupboards in the
kitchen. Can you now get LEDs that would give as even an illumination? If
so, I'd be tempted to change if a dimming electronic ballast fails.
They're probably obsolete now.

Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


Bet they don't dim with my ballasts...

--
*I didn't like my beard at first. Then it grew on me.*

Dave Plowman London SW
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In article ,
T i m wrote:
On Wed, 09 Jun 2021 15:57:24 +0100, Scott
wrote:


snip


Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


I've *just* picked up a high output 5' LED florry replacement for a
fitting in the study / workshop but the fitting is electronic so I'm
going to have to bypass all the 'guts'.


The main reason for doing it isn't (primarily) the light but the hope
it will get rid of the mains hum ... ;-(


Mains hum from an electronic ballast? Something not right there as they
(should) run at a higher frequency to get rid of flicker.

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In article ,
T i m wrote:
So Bill was 'wright' again. ;-) Perfectly possible to get some of the
Astra 28 group but not all, if the dish is off alignment.


I think *all* bets would be off if the dish was out of alignment. ;-)


It's also not knowing what you can get away with. On the dish bracket,
each degree marking is about 1mm apart. And the setting I got was 22.7.
With the pointer being about 2mm wide.

I sort of assumed with a 1 metre dish it would be pretty tolerant. Find
any one of the Astra group and the others would be OK. But not so -
obviously.

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Dave Plowman London SW
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On Wed, 09 Jun 2021 16:32:20 +0100, "Dave Plowman (News)"
wrote:

In article ,
Scott wrote:
I thought contrast between the characters and the page was important.
I had a neighbour who had macular degeneration and she found that CFL
lamps made it very difficult to see, likewise sodium lamps outside.


Low pressure sodium, yes. As that is very narrow spectrum. I'm surprised
any domestic light made much difference. Except, of course CFL, claiming
to be much brighter than they were. So if she substituted a claimed 60
watt equivalent, it was likely a lot dimmer.


It could have been that, but she specifically said it was too yellow.
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On Wed, 09 Jun 2021 09:39:20 +0100, ss wrote:

..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....


In our bathroom we have 2 halogen wall lights with G9 40W mains capsules
rated at 460L each. Looking at LED replacements I can only see 200L
capsules, so we would get less than half the illumination. Fortunately I
have 5 spares so they should out last me!

--
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On Wed, 09 Jun 2021 16:33:18 +0100, "Dave Plowman (News)"
wrote:

In article ,
Scott wrote:
On Wed, 09 Jun 2021 15:21:50 +0100, "Dave Plowman (News)"
wrote:


In article ,
Tim Lamb wrote:
In message , nightjar
writes
On 09/06/2021 09:39, ss wrote:
..."Sales of halogen lightbulbs are to be banned in the UK from
September, with fluorescent lights to follow, under government climate
change plans"....

Apart from a few, rarely used, lamps that have yet to be changed, I
have long converted everything to LED.

Hmm.. I have about 25 twin 5' florries in my workshop in 4 switched
banks. This may be the moment to do the LED conversion.

I've still got florries lighting worktops under the cupboards in the
kitchen. Can you now get LEDs that would give as even an illumination? If
so, I'd be tempted to change if a dimming electronic ballast fails.
They're probably obsolete now.

Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


Bet they don't dim with my ballasts...


I misunderstood. I thought you meant you were getting rid of the
ballast. It seems to be possible to dim them though:
https://www.lighting.philips.co.uk/a...GB.PROF.CF.pdf
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On Wed, 09 Jun 2021 16:22:46 +0100, Scott
wrote:

On Wed, 09 Jun 2021 16:11:48 +0100, T i m wrote:

On Wed, 09 Jun 2021 15:57:24 +0100, Scott
wrote:

snip

Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


I've *just* picked up a high output 5' LED florry replacement for a
fitting in the study / workshop but the fitting is electronic so I'm
going to have to bypass all the 'guts'.


Did it not come with a replacement 'starter', which just shorts out
the starter unit or does this only work with non-electronic ballasts
(as mine was)?

The main reason for doing it isn't (primarily) the light but the hope
it will get rid of the mains hum ... ;-(


It achieved that.


PS Now I remember. I think it comes as two versions: one for
electronic ballasts and one for non-electronic. Mine was the latter
(which I think is easier).
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On 09/06/2021 12:55, Scott wrote:

rendition. Any comments on reading under a 230V LED spotlight? Would
you go for cool, daylight or warm?


4,500

Bill
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On 09/06/2021 16:35, Dave Plowman (News) wrote:
In article ,
T i m wrote:
On Wed, 09 Jun 2021 15:57:24 +0100, Scott
wrote:


snip


Even better, you can get direct substitutes. I bought two four foot
long LED tubes for the utility room, which fitted the existing ballast
after replacing the starter with a dummy.


I've *just* picked up a high output 5' LED florry replacement for a
fitting in the study / workshop but the fitting is electronic so I'm
going to have to bypass all the 'guts'.


The main reason for doing it isn't (primarily) the light but the hope
it will get rid of the mains hum ... ;-(


Mains hum from an electronic ballast? Something not right there as they
(should) run at a higher frequency to get rid of flicker.


Usually inaudible, however it will be modulated by 100Hz. Because
ferrites exhibit magnetorestriction, and the effect is non-linear, it
might be possible to hear some hum.


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On 09/06/2021 13:15, Andrew wrote:
And fluorescent tubes are reasonably efficient in terms of
light output vs power in.


They are the same as LEDS

Bill
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