Can anyone tell me definitively what emitter this is? There’s conjecture about what it isn’t. Sorry I can’t pull the emitter, but I will probably damage the light if I do. I think I know what it is, but can’t be sure. I wish my camera had a better macro, but it doesn’t.
ok, then, the dome is there apparently, but then the die is smaller than the 219. I have a 219B (from Kaidomain) that is like the one we know, but with smaller die (I am going to do some output tests on it these days), perhaps there was a 219A with smaller die also?
I came across your led a few times on the internet and it is indeed a Nichia 219A, and not the die is smaller, but this version has a shallower dome compared to our beloved 4500K 92CRI led (the viewing angle is 120deg instead of 110deg for the 'normal' one). And because it is not the exact same highCRI led we know, the colour temperature and CRI may be questioned....
Thanks for this! It clears up a lot. I like the tint of the light a lot, and it looks as great as my other Neutral lights, but it’s good to know. I was in discussion with another member about this, who brought it to my attention. It was listed as a high-CRI by the manufacturer, but the other member has another high CRI to compare it to, and says the emitters themselves are different colors. I don’t know how exactly different it is in beam output, without having a verified high CRI Nichia to compare it to- but I’d be interested to see the difference. It was the Rayus C01 review I did recently, FYI. The person who brought this to my attention is a vendor who is concerned about quality, before offering them for sale.
So I guess, all I can say about the light is that it is a 219 Nichia, and I like the tint. Is it 60, 70, 80, 90 CRI? I don’t know, but it is definitely nice to look at.
If Rayus is dedicated to keep their lights up-to-date they may look into the newer 219B, significantly more efficient than this 219A: XP-G2 level efficiency with better tint/CRI. The 92CRI version of this new generation is close to 5000K and has a very good tint.
Measuring CRI btw is only done with professional equipment. Experienced amateurs like some of us can have an educated guess of CRI, but not many can distinguish 80CRI from 92 CRI.
That’s what I figured, but I least like to represent things as accurately as I can. I know that people in this hobby quibble over minute output gains that really need to be measured, because a lot of times our eyes can’t tell the difference. But it’s like that with any sort of interest. And again, I have lights with a wide variety of tints, and it was imperceptible to me. The manufacturer says that the light is a Nichia 219 B11 with a CRI of 92. Is it possible that this is a newer bin? Or is this one that people are familiar with as not being high CRI? Just because the color temperature is slightly different, is there any way to tell it’s not a high CRI?
219 B11 92CRI sounds very suspicious because that is the exact description that several sellers use, but refers to the top bin 110deg 4500K 219A led, and this is not that exact led. My best guess is that they do or don't know which led they really use, but that they almost certainly copied the description from other sellers. Problem is that the 219A also comes in 80 CRI and 85CRI, which is almost indistinguishable. A real clue is that the die colour seems way more yellow than the 92CRI version should be: because the high CRI is partly caused by converting more light to red, the phosfor-mix is different and should be more orange-coloured. But the too yellow colour on my computer screen can also be caused by your camera.
It may be slightly more yellow in the photo but it’s not that far off. This other member, who brought it to my attention, also noticed that his sample had a yellower color than he was accustomed to, vs. the high CRI Nichia, which is why he contacted me. Thanks for all the clarification. I’ve learned quite a bit from this discussion.