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Default An LED question

In my garden I have some globe lights, all are fed from a transformer giving
nominally 12v ac from a radio switch I can operate from my pocket. However
the construction of the wiring andlights is quite frankly rubbish, but I do
like globes. I was wondering if any led bulbs capable of operating on such a
system and giving uniform globe illumination was around. Ifrequired I would
even buy holders as this is the problem in the current lights, ie insulation
displacement connections are unreliable.

I I am aware that many forms of rechargeable garden lights exist,but for my
use I'm happy with centralcontrol and bright lights. the plug in wire ended
bulbs are rubbish and of course tungsten and inefficient. My feeling was a
small defused led of some kind in series with a diode so I could share the
ac cycles between lights soto speak.
Brian

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On 09/11/2016 16:43, Brian Gaff wrote:
In my garden I have some globe lights, all are fed from a transformer giving
nominally 12v ac from a radio switch I can operate from my pocket. However
the construction of the wiring andlights is quite frankly rubbish, but I do
like globes. I was wondering if any led bulbs capable of operating on such a
system and giving uniform globe illumination was around. Ifrequired I would
even buy holders as this is the problem in the current lights, ie insulation
displacement connections are unreliable.

I I am aware that many forms of rechargeable garden lights exist,but for my
use I'm happy with centralcontrol and bright lights. the plug in wire ended
bulbs are rubbish and of course tungsten and inefficient. My feeling was a
small defused led of some kind in series with a diode so I could share the
ac cycles between lights soto speak.


Something like this might well do the job.

https://www.amazon.co.uk/Liqoo-10pcs...dp/B00ZTZ8ZV2/

There are cheaper ones too but not quite so nice.

--
Regards,
Martin Brown
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Default An LED question

Spotlights sounds like one direction though. I'm looking at something where
the large ish globe is all evenly illuminated. My light perception is what
I'm after using having no focus any more spots would vanish if viewed from
other directions.
Brian

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

Blind user, so no pictures please!
"Martin Brown" wrote in message
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On 09/11/2016 16:43, Brian Gaff wrote:
In my garden I have some globe lights, all are fed from a transformer
giving
nominally 12v ac from a radio switch I can operate from my pocket.
However
the construction of the wiring andlights is quite frankly rubbish, but I
do
like globes. I was wondering if any led bulbs capable of operating on
such a
system and giving uniform globe illumination was around. Ifrequired I
would
even buy holders as this is the problem in the current lights, ie
insulation
displacement connections are unreliable.

I I am aware that many forms of rechargeable garden lights exist,but for
my
use I'm happy with centralcontrol and bright lights. the plug in wire
ended
bulbs are rubbish and of course tungsten and inefficient. My feeling was
a
small defused led of some kind in series with a diode so I could share
the
ac cycles between lights soto speak.


Something like this might well do the job.

https://www.amazon.co.uk/Liqoo-10pcs...dp/B00ZTZ8ZV2/

There are cheaper ones too but not quite so nice.

--
Regards,
Martin Brown



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Default An LED question

On Thursday, 10 November 2016 08:22:20 UTC, Brian Gaff wrote:
Spotlights sounds like one direction though. I'm looking at something where
the large ish globe is all evenly illuminated.


I have bought 4 of these for the garage - they're brilliant.

http://ebay.eu/2fFcPMo
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Default An LED question

On 10/11/2016 08:22, Brian Gaff wrote:

Spotlights sounds like one direction though. I'm looking at something where
the large ish globe is all evenly illuminated. My light perception is what
I'm after using having no focus any more spots would vanish if viewed from
other directions.
Brian


Its a "spotlight" with a beam width of 270 degrees. Basically intended
as a functional equivalent of a bare 12v quartz halogen bulb.

I haven't used the new ones but something similar and they are pretty
bright compact light sources. The only criticism might be that they are
too point source like and a bit dazzling when in line of sight.

--
Regards,
Martin Brown


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Default An LED question

In article ,
Brian Gaff wrote:
Spotlights sounds like one direction though. I'm looking at something
where the large ish globe is all evenly illuminated. My light perception
is what I'm after using having no focus any more spots would vanish if
viewed from other directions.


LEDs as such do tend to be approaching a point source and directional. The
'lens' on them may modify this.

To get a large even globe, you'd need a lot of them and a diffusing outer.

I've not seen any that look just like opaque globe tungsten - they tend to
have more of a hot spot. Tungsten of that type likely have a very long
filament which is why they are more delicate than GLS.

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Dave Plowman London SW
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Default An LED question

On 10/11/2016 10:30, Dave Plowman (News) wrote:

I've not seen any that look just like opaque globe tungsten


Is an opaque one an energy saving bulb as you don't need a filament or
is 100% inefficient as it just gets hot?

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On Thursday, 10 November 2016 10:33:32 UTC, Dave Plowman (News) wrote:


I've not seen any that look just like opaque globe tungsten - they tend to
have more of a hot spot. Tungsten of that type likely have a very long
filament which is why they are more delicate than GLS.


These

http://ebay.eu/2fFcPMo

In action he

https://pbs.twimg.com/media/CwMxLg0W8AIBpZf.jpg
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Default An LED question

On 10/11/2016 10:30, Dave Plowman (News) wrote:
In article ,
Brian Gaff wrote:
Spotlights sounds like one direction though. I'm looking at something
where the large ish globe is all evenly illuminated. My light perception
is what I'm after using having no focus any more spots would vanish if
viewed from other directions.


LEDs as such do tend to be approaching a point source and directional. The
'lens' on them may modify this.

To get a large even globe, you'd need a lot of them and a diffusing outer.

I've not seen any that look just like opaque globe tungsten - they tend to
have more of a hot spot. Tungsten of that type likely have a very long
filament which is why they are more delicate than GLS.


You can get them in globes. Although TBH I prefer the cheaper corn on
the cob types if I want something approximating omnidirectional.

--
Regards,
Martin Brown
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Default An LED question

On Thursday, 10 November 2016 12:00:46 UTC, Martin Brown wrote:


You can get them in globes. Although TBH I prefer the cheaper corn on
the cob types if I want something approximating omnidirectional.


I nearly got killed while 20 foot up a ladder screwing in a corncob.

https://www.avforums.com/threads/som...ethal.1862196/



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Default An LED question

In article ,
Martin Brown wrote:
I've not seen any that look just like opaque globe tungsten - they tend to
have more of a hot spot. Tungsten of that type likely have a very long
filament which is why they are more delicate than GLS.


You can get them in globes. Although TBH I prefer the cheaper corn on
the cob types if I want something approximating omnidirectional.


I have a large globe tungsten in the light above a table. Used because it
looks pretty. Very evenly lit approx 6" sphere. I'd like a dimmable LED to
do the same job. But must look as good on and off.

--
*A clear conscience is usually the sign of a bad memory *

Dave Plowman London SW
To e-mail, change noise into sound.
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Default An LED question

On Thu, 10 Nov 2016 12:00:43 +0000, Martin Brown wrote:

On 10/11/2016 10:30, Dave Plowman (News) wrote:
In article ,
Brian Gaff wrote:
Spotlights sounds like one direction though. I'm looking at something
where the large ish globe is all evenly illuminated. My light perception
is what I'm after using having no focus any more spots would vanish if
viewed from other directions.


LEDs as such do tend to be approaching a point source and directional. The
'lens' on them may modify this.

To get a large even globe, you'd need a lot of them and a diffusing outer.

I've not seen any that look just like opaque globe tungsten - they tend to
have more of a hot spot. Tungsten of that type likely have a very long
filament which is why they are more delicate than GLS.


You can get them in globes. Although TBH I prefer the cheaper corn on
the cob types if I want something approximating omnidirectional.


Careful! 'Corn' looks like a corn-cob; 'COB' means chip on board (not the
same as SMD) and some narrow-angle GU10s are COB: one chib, er, on a board
(FSVOB).
--
Peter.
The gods will stay away
whilst religions hold sway
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On Thu, 10 Nov 2016 08:22:15 -0000, "Brian Gaff"
wrote:

Spotlights sounds like one direction though. I'm looking at something where
the large ish globe is all evenly illuminated. My light perception is what
I'm after using having no focus any more spots would vanish if viewed from
other directions.


Use 12V LED lights meant as replacements for car side lights. For
example

https://www.aliexpress.com/item/10PC...8-bae29f118b29

These have near enough all round illumination. If you need to remove
all light point sources simply put a tube of translucent material such
as tracing paper over them.

You might need to get someone to do minor surgery to connect to the
base wires but that doesn't seem to be too difficult. Run them all
off a suitable 12VDC supply (such as a surplus computer power supply).

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