'Daylight' LED lights

Nov 21, 2019 Last reply: 6 years ago 43 Replies

The point you were making is you didn't know there were more colours than green in a discontinuous spectrum.

Try some other LEDs. We've got Calico, and never had that impression.

Andy

I've not noticed odd colour rendition with CFLs or LEDs, *in normal usage*. I can see differences in photographs if I do a test with specific coloured objects (eg red is darker and blue becomes more violet), having auto-balanced the camera against a sheet of white paper illuminated by the relevant light for each test. What I have noticed with "daylight" CFLs is a faint greenish cast in a room lit by them when my eyes are adjusted to a room lit by daylight LED bulbs or "tungsten" LEDs.

Colour charts for paint are notoriously inaccurate. We bought some "terracotta" emulsion paint, judging the colour from the colour chart and from the paint in the transparent plastic "tin" that it came in. It was the correct colour when it went on, but it dried a much lighter pink rather than a darker colour of a terracotta plant pot.

Then we bought some very pale green paint for the bathroom, and that dried vivid, almost fluorescent green. So we bought some replacement paint which looked very pale green on the colour chart (though pale blue when viewed on the online colour chart). Given that the colour was described as "Jade White" you'd expect green. But it was actually pale blue. We decided to live with that. And both of us see it as blue on the wall (and both of us saw it as green on the colour chart), so it's not a problem with one of us having funny colour perception.

OK, there are some things my wife and I *do* see differently. Remember "that dress" which was the topic of hot debate on the internet the other year? I see it as white (or very pale blue) and gold, whereas my wife sees it as it should be (mid blue and black). I think, in the absence of any reference point, my guess of white and gold is more plausible (allowing for camera possible balanced for tungsten light, but viewing something in daylight), and that it was evidently *very* overexposed making mid blue and black render as pale blue and gold (as determined by the RGB values) in the photo). So the mystery is how a sizeable proportion of the population were able (correctly) to make a very large correction for a grossly overexposed photo, rather than seeing it as the photo reproduced it.

Likewise, we beg to differ on the "yanni/laurel" audio clip that was being discussed earlier this year.

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bought the above as they looked like they'd look OK on the wall.

I've a couple of proper ones from a local electrical factor (Ansell, described as cool white) so i'll use one of those instead.

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