I tried to find a supplier who could supply them on as flexible strip.
Infortunately as soon as it arrived, I powered it up and it was standard 630nm orangey red.
I shone my 660nm torch next to it and it was obvious.
I challenged the supplier who produced a graph showing a peak of 660m nm.
I then spent £175 haveing their strip tested and it came out at about 630nm. Suprise.
Now tthay are saying that the value depends on CCT temperature. Theirs is 140-0K, my testsa are 1000K.
Surely this makes no difference at all.
A dominant wave length is a dominant wavelength no matter how you measure it (unless you're in a black hope).
A m I right. Photometrics seems a complicate dsubjuect but surely physics says 660nm is deep red and 630nm os orangey red.
Some one p[leasde reassureme I am not an idiot. You can look at a colour chart and see the difference.