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'Daylight' LED lights
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. |
'Daylight' LED lights
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. |
'Daylight' LED lights
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 |
'Daylight' LED lights
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. |
'Daylight' LED lights
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 | \================================================= ================/ |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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 |
'Daylight' LED lights
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'Daylight' LED lights
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. |
'Daylight' LED lights
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. |
'Daylight' LED lights
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 |
'Daylight' LED lights
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. |
'Daylight' LED lights
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. |
'Daylight' LED lights
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 |
'Daylight' LED lights
"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. |
'Daylight' LED lights
On 22/11/2019 16:53, Andrew wrote:
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. All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. -- mailto : news {at} admac {dot} myzen {dot} co {dot} uk |
'Daylight' LED lights
On Friday, 22 November 2019 16:54:30 UTC, Andrew wrote:
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. wouldn't surprise me at all. That's why most fruit nets are coloured as they are. NT |
'Daylight' LED lights
In article ,
alan_m wrote: All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. -- *Vegetarians taste great* Dave Plowman London SW To e-mail, change noise into sound. |
'Daylight' LED lights
On 22/11/2019 18:35, alan_m wrote:
On 22/11/2019 16:53, Andrew wrote: 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. All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. But that is what the 'sell by' date if for ! |
'Daylight' LED lights
On 23/11/2019 11:21, Dave Plowman (News) wrote:
In article , alan_m wrote: All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. That's why you need daylight type bulbs at home. Supermarkets use different colour temperature lights not to give you true information about their products but to disguise anything that may look unappetising or a bit dodgy. I do appreciate that those who not do want to see the dust/dirt and perhaps have a poor hygiene cleaning regime in their homes will always opt for the more traditional artificial warm white lighting. -- mailto : news {at} admac {dot} myzen {dot} co {dot} uk |
'Daylight' LED lights
On 23/11/2019 12:45, Andrew wrote:
On 22/11/2019 18:35, alan_m wrote: On 22/11/2019 16:53, Andrew wrote: 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. All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. But that is what the 'sell by' date if for ! Obviously you don't buy much fresh fruit and vegetables in supermarkets. Sell by dates mean nothing when storage and transporting often have more of an impact on the quality of "fresh" items. -- mailto : news {at} admac {dot} myzen {dot} co {dot} uk |
'Daylight' LED lights
On 23/11/2019 14:21, alan_m wrote:
On 23/11/2019 11:21, Dave Plowman (News) wrote: In article , Â*Â*Â* alan_m wrote: All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. That's why you need daylight type bulbs at home. Daylight bulbs are not continuous spectrum. As well as temperature some bulbs also report colour rendering index. It is also worth noting that the actual sections of the spectrum our eyes detect differs for different people. So when bulbs produce a patchy spectrum, what work well for one person may not work well for another. |
'Daylight' LED lights
In article ,
Pancho wrote: That's why you need daylight type bulbs at home. Daylight bulbs are not continuous spectrum. As well as temperature some bulbs also report colour rendering index. Quite. To differentiate between colours, you need continuous spectrum lighting. The colour temperature is less important than that, as your 'eyes' compensate to some extent. -- *I started out with nothing, and I still have most of it* Dave Plowman London SW To e-mail, change noise into sound. |
'Daylight' LED lights
"Dave Plowman (News)" wrote in message ... In article , alan_m wrote: All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. Doesn’t have to be continuous spectrum. The Philips Hue white ambiance works fine for being able to see if the green grapes are over ripe. Not cheap but Amazon keeps doing very good discounts and the competitors with a clue match those. Main problem is that it isnt cheap with those stupid chandelier lights and there isnt currently any flat panel lights. |
More Heavy Trolling by Senile Nym-Shifting Rodent Speed!
On Sun, 24 Nov 2019 03:23:29 +1100, Ray, better known as cantankerous
trolling senile geezer Rodent Speed, wrote: Doesn¢t have to be continuous spectrum. The Philips Hue I believe I told you already, you can shove your Philips Hue up your senile troll's arse, senile trolling arsehole! -- The Natural Philosopher about senile Rot: "Rod speed is not a Brexiteer. He is an Australian troll and arsehole." Message-ID: |
'Daylight' LED lights
On 23/11/2019 12:45, Andrew wrote:
On 22/11/2019 18:35, alan_m wrote: On 22/11/2019 16:53, Andrew wrote: 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. All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. But that is what the 'sell by' date if for ! It's a long time since they used them. (I thought they were "display until" not "sell by".) Now there are "best before" and "use by" dates, the latter for perishables that could be dangerous to eat when expired. -- Max Demian |
'Daylight' LED lights
alan_m wrote:
On 22/11/2019 16:53, Andrew wrote: 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. All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. Slightly apropos: We painted our walls in 'Calico' #e3ba93 (it looks a lot lighter on the walls.) When we installed CFLs it looked like baby ****. Fortunately, I had laid in a stock of Chinese incandescent lamps before they became illegal. -- ^Ï^ My pet rock Gordon doesn't care about the fnords anymore. |
'Daylight' LED lights
In article ,
Ray wrote: Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. Doesn’t have to be continuous spectrum. The Philips Hue white ambiance works fine for being able to see if the green grapes are over ripe. Green isn't the only colour in the spectrum. -- *Why is it that most nudists are people you don't want to see naked?* Dave Plowman London SW To e-mail, change noise into sound. |
'Daylight' LED lights
On 24/11/2019 12:56:08, Dave Plowman (News) wrote:
In article , Ray wrote: Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. Doesnt have to be continuous spectrum. The Philips Hue white ambiance works fine for being able to see if the green grapes are over ripe. Green isn't the only colour in the spectrum. Nor is it the only colour in a discontinuous spectrum. What's your point? |
'Daylight' LED lights
On 23/11/2019 14:21, alan_m wrote:
On 23/11/2019 11:21, Dave Plowman (News) wrote: In article , Â*Â*Â* alan_m wrote: All large supermarkets will use different colour temperature light fittings over the fruit and fresh meat counters. With (green) grapes you cannot see the over-ripe ones until you view them under the lighting in other parts of the store. Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. That's why you need daylight type bulbs at home. Supermarkets use different colour temperature lights not to give you true information about their products but to disguise anything that may look unappetising or a bit dodgy. The closest to a full spectrum daylight bulb you will get for home use is a LV halogen. Anything that relies on phosphor or gas discharge will by its very nature be discontinuous. I do appreciate that those who not do want to see the dust/dirt and perhaps have a poor hygiene cleaning regime in their homes will always opt for the more traditional artificial warm white lighting. Hmm, a mixture of flawed logic, and passive aggressive innuendo all in one! -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
'Daylight' LED lights
In article ,
Fredxx wrote: On 24/11/2019 12:56:08, Dave Plowman (News) wrote: In article , Ray wrote: Which does rather show the importance of using decent continuous spectrum lighting of the correct colour temperature. Unless you like not being able to see things at home. Doesn‘t have to be continuous spectrum. The Philips Hue white ambiance works fine for being able to see if the green grapes are over ripe. Green isn't the only colour in the spectrum. Nor is it the only colour in a discontinuous spectrum. What's your point? The one I made and you've quoted at the top of this post. Which bit didn't you understand? -- *I got a sweater for Christmas. I really wanted a screamer or a moaner* Dave Plowman London SW To e-mail, change noise into sound. |
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