Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

On Thursday, 21 November 2019 14:40:12 UTC, R D S wrote:
Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Well that explains it.



Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?

Recreating daylight isn't easy from LED's especailly at a good price.

It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

Probabily although that won;t change the spectrum of cheap LED's or even expensive ones.

On 21/11/2019 14:40, R D S wrote:
Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

What was the specified colour temperature? (6000 K is like sunlight.)
Note that they can't simulate sunlight exactly as that requires a more
or less continuous spectrum through the visible range. LEDs tend to have
a lumpy spectrum that lacks the violet.

--
Max Demian

On 21/11/2019 14:56, Max Demian wrote:

What was the specified colour temperature? (6000 K is like sunlight.)
Note that they can't simulate sunlight exactly as that requires a more
or less continuous spectrum through the visible range. LEDs tend to have
a lumpy spectrum that lacks the violet.


The specified temp was 6000-6500k.
I should have bought just the one for testing, but they were almost half
price bought in a pack of 10, I wondered how much it would matter but
they are bloody awful.

I have a panel in the kitchen at home which switches between 3
temperatures. One end is yellow, the other looks like an operating
theatre but the inbetween one is great.

On 21/11/2019 15:08, R D S wrote:
On 21/11/2019 14:56, Max Demian wrote:

What was the specified colour temperature? (6000 K is like sunlight.)
Note that they can't simulate sunlight exactly as that requires a more
or less continuous spectrum through the visible range. LEDs tend to
have a lumpy spectrum that lacks the violet.


The specified temp was 6000-6500k.

That is very 'daylight'

Warm is 3500-4500. I like it somewhere in the 5000 range for work

I should have bought just the one for testing, but they were almost half
price bought in a pack of 10, I wondered how much it would matter but
they are bloody awful.

I have a panel in the kitchen at home which switches between 3
temperatures. One end is yellow, the other looks like an operating
theatre but the inbetween one is great.



--
"The great thing about Glasgow is that if there's a nuclear attack it'll
look exactly the same afterwards."

Billy Connolly

On 21/11/2019 17:29, The Natural Philosopher wrote:
On 21/11/2019 15:08, R D S wrote:
On 21/11/2019 14:56, Max Demian wrote:

What was the specified colour temperature? (6000 K is like sunlight.)
Note that they can't simulate sunlight exactly as that requires a
more or less continuous spectrum through the visible range. LEDs tend
to have a lumpy spectrum that lacks the violet.


The specified temp was 6000-6500k.

That is very 'daylight'

Warm is 3500-4500. I like it somewhere in the 5000 range for work

I would consider anything above 4000k to be cool white and 6000k for
daylight.


--
Adam

On 21/11/2019 15:08, R D S wrote:
On 21/11/2019 14:56, Max Demian wrote:

What was the specified colour temperature? (6000 K is like sunlight.)
Note that they can't simulate sunlight exactly as that requires a more
or less continuous spectrum through the visible range. LEDs tend to
have a lumpy spectrum that lacks the violet.


The specified temp was 6000-6500k.
I should have bought just the one for testing, but they were almost half
price bought in a pack of 10, I wondered how much it would matter but
they are bloody awful.

I have a panel in the kitchen at home which switches between 3
temperatures. One end is yellow, the other looks like an operating
theatre but the inbetween one is great.

You could probably find a pale orange glass paint to tone them down a
bit. Basically 6000K looks blue when compared to ordinary incandescents.

I prefer warm myself as it mimics conventional incandescent bulbs.

--
Regards,
Martin Brown

You may actually find one in the ones you have that is less blue. Apparently
these cheap ones can be very variable. I agree some glass stain paint as
used by theatrical folk to colour things could be an answer but it would
probably be less efficient and might look a bit streaky!
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 21/11/2019 15:08, R D S wrote:
On 21/11/2019 14:56, Max Demian wrote:

What was the specified colour temperature? (6000 K is like sunlight.)
Note that they can't simulate sunlight exactly as that requires a more
or less continuous spectrum through the visible range. LEDs tend to have
a lumpy spectrum that lacks the violet.


The specified temp was 6000-6500k.
I should have bought just the one for testing, but they were almost half
price bought in a pack of 10, I wondered how much it would matter but
they are bloody awful.

I have a panel in the kitchen at home which switches between 3
temperatures. One end is yellow, the other looks like an operating
theatre but the inbetween one is great.

You could probably find a pale orange glass paint to tone them down a bit.
Basically 6000K looks blue when compared to ordinary incandescents.

I prefer warm myself as it mimics conventional incandescent bulbs.

--
Regards,
Martin Brown

Some of those which use uv leds that flouress a phosphor are apparently
pretty close but not as efficient of course.
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.!
"Max Demian" wrote in message
o.uk...
On 21/11/2019 14:40, R D S wrote:
Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours up
there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour
decor.

What was the specified colour temperature? (6000 K is like sunlight.) Note
that they can't simulate sunlight exactly as that requires a more or less
continuous spectrum through the visible range. LEDs tend to have a lumpy
spectrum that lacks the violet.

--
Max Demian

On 21/11/2019 14:40, R D S wrote:

Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

That does not always bode well :-)

White LEDs are a hybrid of a blue LED, plus a florescent coating to turn
that into white light.

Poor quality phosphors tend to emit a fairly "spikey" white with lots of
spectral gaps, and a fair amount of the LED's blue bleeding though.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

Good quality daylight can look fine - so long as its bright enough. The
eye is attuned to daylight "colour" light at high intensities - making
it feel bright and sunny. At lower levels it just feels cold and blue.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Thu, 21 Nov 2019 14:40:06 +0000, R D S wrote:

Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

The shouldn't be blue - I've quite a few 6000 - 6500K and sometimes forget
to switch one of in daylight because it makes no difference to the perceived
colour.
--
Peter.
The gods will stay away
whilst religions hold sway

On Thursday, 21 November 2019 17:37:35 UTC, PeterC wrote:
On Thu, 21 Nov 2019 14:40:06 +0000, R D S wrote:

Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

The shouldn't be blue - I've quite a few 6000 - 6500K and sometimes forget
to switch one of in daylight because it makes no difference to the perceived
colour.

That could be because the daylight bilb isn't bright enough to matter and it;s contributing little to the ambient light level.

On Fri, 22 Nov 2019 02:45:23 -0800 (PST), whisky-dave wrote:

On Thursday, 21 November 2019 17:37:35 UTC, PeterC wrote:
On Thu, 21 Nov 2019 14:40:06 +0000, R D S wrote:

Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

The shouldn't be blue - I've quite a few 6000 - 6500K and sometimes forget
to switch one of in daylight because it makes no difference to the perceived
colour.

That could be because the daylight bilb isn't bright enough to matter and it;s contributing little to the ambient light level.

It's in an Anglepoise-type thing and a GU10 lamp, so the intensity is pretty
good. As dawn breaks and the light increases I sometimes don't really notice
and eventually they merge. Switching off is very noticeable in intensity but
not in quality, just a small change.
--
Peter.
The gods will stay away
whilst religions hold sway

"PeterC" wrote in message
...
sometimes forget
to switch one of in daylight because it makes no difference to the
perceived
colour.

That could be because the daylight bilb isn't bright enough to matter
and it;s contributing little to the ambient light level.

It's in an Anglepoise-type thing and a GU10 lamp, so the intensity is
pretty
good. As dawn breaks and the light increases I sometimes don't really
notice
and eventually they merge. Switching off is very noticeable in intensity
but
not in quality, just a small change.

At my last house, my study was lit by a 150W-equivalent (25W, I think) CFL
bulb - overhead pendant with a shade.

I sometimes forgot whether the bulb was on or off, because it matched the
daylight coming in through the window.

On 21/11/2019 14:40, R D S wrote:
Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.


No. Chuck 'em int' dustbin. They're neither use nor ornament. Blue
lights put cobs on me.

Bill

On 21/11/2019 14:40, R D S wrote:

It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

Why don't you try one in a room that has mainly a white wall/ceiling to
see if your paint job causing the main problem?

Some so called daylight have a large blue output while the better ones
still have this output but balance this with a similar output throughout
the rest of the spectrum (but skewed towards blue).

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

On 21/11/2019 14:40, R D S wrote:
Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.



What lamps/fittings are they?

--
Adam

Well to me blue is not daylight. You can get cold white which are most
definitely blue. I know this as although I have no sight, shine one of those
blue white leds in a room and my visual disturbances get to epic proportions
and look like lightening with vivid blue flickering.

Yuck.
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.!
"R D S" wrote in message
...
Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours up
there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I get
something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor.

On Thursday, 21 November 2019 14:40:12 UTC, R D S wrote:

Does daylight mean blue, or are these lights not right?
I didn't want warm ones as they look beige.
Problem is I got 10 of them on ebay, as they were a good price.

Anyway, i've put one up in my office at work and I feel like i'm, in a
fishtank, I know things aren't nearly right as after a couple of hours
up there I went downstairs where we have some orange clipboards and they
appeared to be glowing.

I wonder if they can they be toned down at all?
I need more than one light so if I fitted a warm one adjacent, would I
get something more natural overall?
It probably doesn't help that the room is painted lilac, that's going to
change, I wonder if I could improve matters with a different colour decor..

The specified temp was 6000-6500k.
I should have bought just the one for testing, but they were almost half
price bought in a pack of 10, I wondered how much it would matter but
they are bloody awful.

No surprise there. Daylight looks great at daylight light levels, but horrid at indoor lighting levels.

What can you do about it? Relegate the things to cupboards, garage etc. Or sell them to some dodgy geezer in the pub for growing parsley. If you must use them for some odd reason, try a yellow, orange or pink reflector or shade. You will of course lose some light output. Adding a warm white bulb would also help a fair bit.

If you're determined to experiment, you might find that mounting other lighting LEDs on top of the ones in the bulb produces a second stage of fluorescence, converting some of the excess blue into red/yellow/green & thus improving the light colour.


NT

On 21/11/2019 20:02, wrote:

No surprise there. Daylight looks great at daylight light levels, but horrid at indoor lighting levels.


It's down to personal preference. I find that I prefer cool
white/daylight and warm white looks dull and very artificial.

Possibly as I'm getting older the higher contrast cool white seems to
give suits my eyesight. I find it easier to work and read with
cool/daylight LED lighting.


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

On Friday, 22 November 2019 00:22:43 UTC, alan_m wrote:
On 21/11/2019 20:02, tabbypurr wrote:

No surprise there. Daylight looks great at daylight light levels, but horrid at indoor lighting levels.


It's down to personal preference. I find that I prefer cool
white/daylight and warm white looks dull and very artificial.

Possibly as I'm getting older the higher contrast cool white seems to
give suits my eyesight. I find it easier to work and read with
cool/daylight LED lighting.

Sell them to this guy. Very few people like daylight bulbs. They're sometimes used for artwork.


NT

In article ,
wrote:
On Friday, 22 November 2019 00:22:43 UTC, alan_m wrote:
On 21/11/2019 20:02, tabbypurr wrote:

No surprise there. Daylight looks great at daylight light levels,
but horrid at indoor lighting levels.


It's down to personal preference. I find that I prefer cool
white/daylight and warm white looks dull and very artificial.

Possibly as I'm getting older the higher contrast cool white seems to
give suits my eyesight. I find it easier to work and read with
cool/daylight LED lighting.

Sell them to this guy. Very few people like daylight bulbs. They're
sometimes used for artwork.


True colour matching northlight is popular in places where accurate colour
matching is needed. Generally work places of some sort.

--
*Certain frogs can be frozen solid, then thawed, and survive *

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

On 22/11/2019 13:52, Dave Plowman (News) wrote:
In article ,
wrote:
On Friday, 22 November 2019 00:22:43 UTC, alan_m wrote:
On 21/11/2019 20:02, tabbypurr wrote:

No surprise there. Daylight looks great at daylight light levels,
but horrid at indoor lighting levels.


It's down to personal preference. I find that I prefer cool
white/daylight and warm white looks dull and very artificial.

Possibly as I'm getting older the higher contrast cool white seems to
give suits my eyesight. I find it easier to work and read with
cool/daylight LED lighting.

Sell them to this guy. Very few people like daylight bulbs. They're
sometimes used for artwork.


True colour matching northlight is popular in places where accurate colour
matching is needed. Generally work places of some sort.


My local Sainsburys uses fluorescent tubes that seem to have a
distinct yellow-coloured sleeving, over the banana display.

Maybe they are trying alter how green bananas are perceived by
the public.

In article ,
R D S wrote:
Does daylight mean blue, or are these lights not right?

The 'colour' of daylight varies by time of day, time of year, and where in
the world you measure it.

And pretty well no artificial light gives you the entire spectrum of
colours that daylight consists of. And the cheaper they are, generally the
worse at doing this.

--
*Out of my mind. Back in five minutes.

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