Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each. Is this a record low? I have paid several
times that amount in the past.


--
Michael Chare

On Wed, 13 Mar 2019 17:46:19 +0000, Michael Chare wrote:

Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each. Is this a record low? I have paid several
times that amount in the past.

B22 15W 1300 lumens 3000K from CPC - £1.62.

Philips ones with a closer spec are 11 quid, though.

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each.Â* Is this a record low?Â* I have paid several
times that amount in the past.

Price has been falling for quite a while now, but the cheapest ones may
not always be the most reliable or most efficient.

--
Regards,
Martin Brown

So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Martin Brown" wrote in message
...
On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each. Is this a record low? I have paid several
times that amount in the past.

Price has been falling for quite a while now, but the cheapest ones may
not always be the most reliable or most efficient.

--
Regards,
Martin Brown

On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On Wed, 13 Mar 2019 18:44:36 -0000
"Brian Gaff" wrote:

So for the old BC light holders what are the best value that do not
chuck out more RF than light?

I got some BC adaptors to take G9 halogen, for those lamps that are only
used occasionally. :-)

"alan_m" wrote in message
...
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because only the crudest drivers go from 240V to single digit V without any
RF.

On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each.Â* Is this a record low?Â* I have paid several
times that amount in the past.

Poundland. Several purchased certainly more than two years ago, still
working.

--
Adrian C

On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Â* Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because they tend to use switching power supplies using small high
frequency components.

On Wed, 13 Mar 2019 19:13:19 +0000, alan_m
wrote:

On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Brian

Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

I tried LED spotlights in the kitchen and they obliterated DAB radio
reception. These were 12 Volts so the current would have been much
higher. I was told the switched mode power supplies were to blame.

I am now running mains voltage LEDs with no such difficulty.

On 13/03/2019 20:32, Fredxx wrote:
On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not
chuck
out more RF than light?
Â* Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because they tend to use switching power supplies using small high
frequency components.


Do they? or just a capacitor dropper, a bridge rect and a smidgeon of
smoothing?


--
€œit should be clear by now to everyone that activist environmentalism
(or environmental activism) is becoming a general ideology about humans,
about their freedom, about the relationship between the individual and
the state, and about the manipulation of people under the guise of a
'noble' idea. It is not an honest pursuit of 'sustainable development,'
a matter of elementary environmental protection, or a search for
rational mechanisms designed to achieve a healthy environment. Yet
things do occur that make you shake your head and remind yourself that
you live neither in Joseph Stalins Communist era, nor in the Orwellian
utopia of 1984.€�

Vaclav Klaus

On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each.Â* Is this a record low?Â* I have paid several
times that amount in the past.


Poundland/stretcher shop? I've bought a few from there and they're still
going strong a couple of years on. Not 14W though - 8W IIRC.

Forget the price groan

--
Cheers, Rob

On Wed, 13 Mar 2019 17:46:19 +0000, Michael Chare wrote:

Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each. Is this a record low? I have paid several
times that amount in the past.

Home Bargains had the 12W 15oo lm lamps at £2.99 a week or so ago.
I got 4 for a shed (bulkhead fittings in the corners, they are E27 and then,
just for 'fun', 1 B22D - all 6500K - the E27s are great in the shed but the
BC one is a bit, er, bright for almost anywhere!
BTW, in refreshing honesty, they're claimed to be equivalent to 100W. Seem
much more, but that might just be the colour.
--
Peter.
The gods will stay away
whilst religions hold sway

On 13/03/2019 21:13, The Natural Philosopher wrote:
On 13/03/2019 20:32, Fredxx wrote:
On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not
chuck
out more RF than light?
Â* Brian



Why should a LED and the power conditioning circuits in most LED
bulbs push out any RF?

Because they tend to use switching power supplies using small high
frequency components.

Most are tiny switched mode PSUs but they don't normally pump out much
RF unless you are looking at the LW band where their harmonics will be.

Do they? or just a capacitor dropper, a bridge rect and a smidgeon of
smoothing?

The cheapest and nastiest ones are something like one or two strings of
20 or so white LEDs in series. So one failure and you lose all or half
the light. I had one fail that way. Some of the nastier Chinese ones
have potentially dangerous voltages on the bare SMD board - no cover.

--
Regards,
Martin Brown

On 13/03/2019 18:30, Martin Brown wrote:
On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each.Â* Is this a record low?Â* I have paid
several times that amount in the past.

Price has been falling for quite a while now, but the cheapest ones may
not always be the most reliable or most efficient.


Bought some (25) very cheap ones off eBay 3.5 years ago. Used for
several hours every day. All still working 100%.

On 13/03/2019 20:37, Scott wrote:
On Wed, 13 Mar 2019 19:13:19 +0000, alan_m
wrote:

On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Brian

Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

I tried LED spotlights in the kitchen and they obliterated DAB radio
reception. These were 12 Volts so the current would have been much
higher. I was told the switched mode power supplies were to blame.

That is because DAB radios are pathetic designs that barely work.

I am now running mains voltage LEDs with no such difficulty.



--
Regards,
Martin Brown

On 13/03/2019 20:32, Fredxx wrote:
On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not
chuck
out more RF than light?
Â* Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because they tend to use switching power supplies using small high
frequency components.



Really? That may have been true for compact CFL low energy bulbs but
many of the LEDs seem to have a bridge rectifier, a current limiting
series capacitor and perhaps an addition smoothing capacitor, all
operating at a maximum of 50Hz. There is no voltage conversion necessary
as the LED arrays, connected in series operate at high (mains) voltages.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

In article ,
alan_m wrote:
On 13/03/2019 20:32, Fredxx wrote:
On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not
chuck
out more RF than light?
Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because they tend to use switching power supplies using small high
frequency components.



Really? That may have been true for compact CFL low energy bulbs but
many of the LEDs seem to have a bridge rectifier, a current limiting
series capacitor and perhaps an addition smoothing capacitor, all
operating at a maximum of 50Hz. There is no voltage conversion necessary
as the LED arrays, connected in series operate at high (mains) voltages.

Not all of them are like that. Most of the ones I have use only 5 or 6 LEDs.
-

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

In article , lid
says...

On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each.* Is this a record low?* I have paid several
times that amount in the past.

Poundland. Several purchased certainly more than two years ago, still
working.

Ditto
One failure out of 10.

"Adrian Caspersz" wrote in message
...
On 13/03/2019 17:46, Michael Chare wrote:
Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each. Is this a record low? I have paid several
times that amount in the past.

Poundland. Several purchased certainly more than two years ago, still
working.


and me 6 used out doors in dusk to dawn light fittings
over two years not one failure

-

"alan_m" wrote in message
...
On 13/03/2019 20:32, Fredxx wrote:
On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not
chuck
out more RF than light?
Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because they tend to use switching power supplies using small high
frequency components.



Really? That may have been true for compact CFL low energy bulbs but many
of the LEDs seem to have a bridge rectifier, a current limiting series
capacitor and perhaps an addition smoothing capacitor, all operating at a
maximum of 50Hz. There is no voltage conversion necessary as the LED
arrays, connected in series operate at high (mains) voltages.

But the better LED bulbs dont do it that way because
then a single led failure see the entire bulb or half of it
fail. Doesnt cost anymore to use a proper switch mode
power supply and avoid that failure mode. You just use
a different regulator chip that costs the same and save
the relative high cost of the dropper cap, particularly
with the higher quality bulbs that have to use the
relatively expensive dropper caps.

"Rod Speed" wrote in message
...


"alan_m" wrote in message
...
On 13/03/2019 20:32, Fredxx wrote:
On 13/03/2019 19:13, alan_m wrote:
On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not
chuck
out more RF than light?
Brian



Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

Because they tend to use switching power supplies using small high
frequency components.



Really? That may have been true for compact CFL low energy bulbs but many
of the LEDs seem to have a bridge rectifier, a current limiting series
capacitor and perhaps an addition smoothing capacitor, all operating at
a maximum of 50Hz. There is no voltage conversion necessary as the LED
arrays, connected in series operate at high (mains) voltages.

But the better LED bulbs dont do it that way because
then a single led failure see the entire bulb or half of it
fail. Doesnt cost anymore to use a proper switch mode
power supply and avoid that failure mode. You just use
a different regulator chip that costs the same and save
the relative high cost of the dropper cap, particularly
with the higher quality bulbs that have to use the
relatively expensive dropper caps.

And its easy to see which approach is used with a particular
bulb, just wag your finger quickly between your eye and the
bulb and you will see a fixed black image of your finger with
the bulbs that use a high frequency switch mode supply.

In article ,
Mark wrote:
Poundland. Several purchased certainly more than two years ago, still
working.


and me 6 used out doors in dusk to dawn light fittings
over two years not one failure

Outdoors, they tend to keep quite cool. Can be a different matter indoors,
depending on fitting design. And heat shortens the life of the capacitors
in the PS.

--
*Caution: I drive like you do.

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

On Fri, 15 Mar 2019 06:10:38 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:



But

In auto-contradicting mode again, senile auto-contradictor? BG

--
Kerr-Mudd,John addressing senile Rot:
"Auto-contradictor Rod is back! (in the KF)"
MID:

On Fri, 15 Mar 2019 06:12:50 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:


And its easy to see

....what a trolling senile asshole you are, senile Ozzie pest.

--
The Natural Philosopher about senile Rot:
"Rod speed is not a Brexiteer. He is an Australian troll and arsehole."
Message-ID:

On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?

Poundland have a selection up to about 5.5W IIRC.
That seems to be the limit of what they can offer for a pound.

--
Andrew Gabriel

On 14/03/2019 10:26, charles wrote:


Not all of them are like that. Most of the ones I have use only 5 or 6 LEDs.
-


Often what appears to be a single LED is in fact an array of LEDs in
series requiring 30V across them to operate

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On Thursday, 14 March 2019 20:07:37 UTC, Andrew Gabriel wrote:
On 13/03/2019 18:44, Brian Gaff wrote:

So for the old BC light holders what are the best value that do not chuck
out more RF than light?

Poundland have a selection up to about 5.5W IIRC.
That seems to be the limit of what they can offer for a pound.

And as value goes, they're crap. I bought one, it lasted 1hr 40 minutes. It ran so hot one of the LEDs was burnt.


NT

On 15/03/2019 01:17, wrote:
On Thursday, 14 March 2019 20:07:37 UTC, Andrew Gabriel wrote:
On 13/03/2019 18:44, Brian Gaff wrote:

So for the old BC light holders what are the best value that do not chuck
out more RF than light?

Poundland have a selection up to about 5.5W IIRC.
That seems to be the limit of what they can offer for a pound.

And as value goes, they're crap. I bought one, it lasted 1hr 40 minutes. It ran so hot one of the LEDs was burnt.


The problem is again that often price and quality don't equate. I'm
currently staying with friends in for a short time in a different part
of the country to where I live. The local supermarket(s) here are
selling a brand of LED bulbs at 4x the price I can find the same brand
at home from various "discount" stores.

I'm not sure why a LED bulb costing £1 should necessarily be inferior.
It must have reached the stage now that the manufacturing costs of LED
bulbs is starting to reach that of manufacturing costs of filament bulbs
and they used to be on sale at much less than £1.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

"alan_m" wrote in message
...
On 15/03/2019 01:17, wrote:
On Thursday, 14 March 2019 20:07:37 UTC, Andrew Gabriel wrote:
On 13/03/2019 18:44, Brian Gaff wrote:

So for the old BC light holders what are the best value that do not
chuck
out more RF than light?

Poundland have a selection up to about 5.5W IIRC.
That seems to be the limit of what they can offer for a pound.

And as value goes, they're crap. I bought one, it lasted 1hr 40 minutes.
It ran so hot one of the LEDs was burnt.


The problem is again that often price and quality don't equate. I'm
currently staying with friends in for a short time in a different part of
the country to where I live. The local supermarket(s) here are selling a
brand of LED bulbs at 4x the price I can find the same brand at home from
various "discount" stores.

I'm not sure why a LED bulb costing £1 should necessarily be inferior. It
must have reached the stage now that the manufacturing costs of LED bulbs
is starting to reach that of manufacturing costs of filament bulbs and
they used to be on sale at much less than £1.

Thats just plain silly with the fancy bulbs like the Philips Hues.

On Fri, 15 Mar 2019 20:25:49 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:



That¢s just plain silly with the fancy bulbs like the Philips Hues.

Stick your Philips Hues up yours finally, senile Rot! No wait, you can't
really do that, you got your head up there already!

--
Bill Wright to Rot Speed:
"That confirms my opinion that you are a despicable little ****."
MID:

On 15/03/2019 09:25, Rod Speed wrote:


I'm not sure why a LED bulb costing £1 should necessarily be inferior.
It must have reached the stage now that the manufacturing costs of LED
bulbs is starting to reach that of manufacturing costs of filament
bulbs and they used to be on sale at much less than £1.

Thats just plain silly with the fancy bulbs like the Philips Hues.

99.999% of the population will not be buying Philips Hues. I'll bet all
these gimmicky user configurable bulbs will just be used with a simple
on/off switch once the novelty has worn off

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

"alan_m" wrote in message
...
On 15/03/2019 09:25, Rod Speed wrote:


I'm not sure why a LED bulb costing £1 should necessarily be inferior.
It must have reached the stage now that the manufacturing costs of LED
bulbs is starting to reach that of manufacturing costs of filament bulbs
and they used to be on sale at much less than £1.

Thats just plain silly with the fancy bulbs like the Philips Hues.

99.999% of the population will not be buying Philips Hues.

But they will be using LED bulbs that cost
more to make than an incandescent bulb.

I'll bet all these gimmicky user configurable bulbs will just be used with
a simple on/off switch once the novelty has worn off

How much are you betting on that ?

On Friday, 15 March 2019 14:35:27 UTC, Rod Speed wrote:
"alan_m" wrote in message
...
On 15/03/2019 09:25, Rod Speed wrote:


I'm not sure why a LED bulb costing £1 should necessarily be inferior.
It must have reached the stage now that the manufacturing costs of LED
bulbs is starting to reach that of manufacturing costs of filament bulbs
and they used to be on sale at much less than £1.

Thats just plain silly with the fancy bulbs like the Philips Hues.

99.999% of the population will not be buying Philips Hues.

But they will be using LED bulbs that cost
more to make than an incandescent bulb.

I doubt that unless they have more money than sense, which of course some have.
Others might just do it to show off, like having jewlery on their watches.


I'll bet all these gimmicky user configurable bulbs will just be used with
a simple on/off switch once the novelty has worn off

How much are you betting on that ?

How will you prove it either way.
How many times would yuo expect someone to adjust the colour temeprature of such a bukld, 3 or 4 times an hour a day a week ?

On Thu, 14 Mar 2019 09:02:54 +0000, Martin Brown
wrote:

On 13/03/2019 20:37, Scott wrote:
On Wed, 13 Mar 2019 19:13:19 +0000, alan_m
wrote:

On 13/03/2019 18:44, Brian Gaff wrote:
So for the old BC light holders what are the best value that do not chuck
out more RF than light?
Brian

Why should a LED and the power conditioning circuits in most LED bulbs
push out any RF?

I tried LED spotlights in the kitchen and they obliterated DAB radio
reception. These were 12 Volts so the current would have been much
higher. I was told the switched mode power supplies were to blame.

That is because DAB radios are pathetic designs that barely work.

Funny that, it worked perfectly well when the 12 Volt LED spots were
switched off. It works perfectly well with mains voltage spotlights.
The one variable in the equation is the 12 Volt spots.

On Sat, 16 Mar 2019 01:35:16 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:


99.999% of the population will not be buying Philips Hues.

But they will be using LED bulbs that cost
more to make than an incandescent bulb.

I'll bet all these gimmicky user configurable bulbs will just be used with
a simple on/off switch once the novelty has worn off

How much are you betting on that ?

Just do as ordered and stuff your Philips Hues up yours ...once you managed
to pull your head out of your arse.

--
Sqwertz to Rot Speed:
"This is just a hunch, but I'm betting you're kinda an argumentative
asshole.
MID:

In article ,
Scott wrote:
I tried LED spotlights in the kitchen and they obliterated DAB radio
reception. These were 12 Volts so the current would have been much
higher. I was told the switched mode power supplies were to blame.

That is because DAB radios are pathetic designs that barely work.

Funny that, it worked perfectly well when the 12 Volt LED spots were
switched off. It works perfectly well with mains voltage spotlights.
The one variable in the equation is the 12 Volt spots.

It could well be the LEDs present too low a load for a SMPS to operate
correctly. So you may need to swop it for one designed for LEDs. Or
replace the fittings with similar ones designed for mains LEDs. Not really
sure using a low volt SMPS designed for 12v tungsten plus and an extra one
in the LED makes any sense. It might even be possible to convert the
existing fittings.

--
*If you think nobody cares about you, try missing a couple of payments *

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

On Sat, 16 Mar 2019 12:58:38 +0000 (GMT), "Dave Plowman (News)"
wrote:

In article ,
Scott wrote:
I tried LED spotlights in the kitchen and they obliterated DAB radio
reception. These were 12 Volts so the current would have been much
higher. I was told the switched mode power supplies were to blame.

That is because DAB radios are pathetic designs that barely work.

Funny that, it worked perfectly well when the 12 Volt LED spots were
switched off. It works perfectly well with mains voltage spotlights.
The one variable in the equation is the 12 Volt spots.

It could well be the LEDs present too low a load for a SMPS to operate
correctly. So you may need to swop it for one designed for LEDs. Or
replace the fittings with similar ones designed for mains LEDs. Not really
sure using a low volt SMPS designed for 12v tungsten plus and an extra one
in the LED makes any sense. It might even be possible to convert the
existing fittings.

I was using a torroidal transformer, a long way from the radio. My
research at the time suggested that the SMPS operating at 20x greater
current (than mains voltage) was likely to be causing RF interference
and as far as I can see that is what happened.

Using the same torroidal transformer with halogen bulbs caused on
difficulties. I now have mains voltage LED bulbs with no difficulty.

Once again, the common factor was the 12 Volt LED bulbs. I blame them.

In article ,
Scott wrote:
It could well be the LEDs present too low a load for a SMPS to operate
correctly. So you may need to swop it for one designed for LEDs. Or
replace the fittings with similar ones designed for mains LEDs. Not really
sure using a low volt SMPS designed for 12v tungsten plus and an extra one
in the LED makes any sense. It might even be possible to convert the
existing fittings.

I was using a torroidal transformer, a long way from the radio. My
research at the time suggested that the SMPS operating at 20x greater
current (than mains voltage) was likely to be causing RF interference
and as far as I can see that is what happened.

Using the same torroidal transformer with halogen bulbs caused on
difficulties. I now have mains voltage LED bulbs with no difficulty.

Once again, the common factor was the 12 Volt LED bulbs. I blame them.

Ah - right. Although probably just poor design. No reason I can think of
why a 12v AC SMPS to drive a LED should be any different to a 240v AC one,
interference wise. But I've not got any 12v LEDs here.

--
*You are validating my inherent mistrust of strangers

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

On Wed, 13 Mar 2019 17:46:19 +0000, Michael Chare wrote:

Today in Morrisons, I bought two B22 GLS 14W 1521 lumens 2700K light
bulbs for £6, i.e. £3 each. Is this a record low? I have paid several
times that amount in the past.

I hate to burst your bubble but Home & Bargain have been selling B22 12W
1500Lm warm and cool white for nearly two years now (they also do them in
ES27). :-)

--
Johnny B Good