519A-v1 has R70 1800k, 2000k, 2200k tint Product Data LED | NICHIA CORPORATION
Here’s some we can buy right now
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Lumileds 1800k 90 CRI
These aren’t 3535 but with some patience they can be re-flowed on 3535 pads
Modded lt1 -
XP-G3 1800k 70 CRI
I don’t believe anyone has tested these yet, but these are XP-G3.
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XT-E 2200k. The ones I got are quite terrible, yellow, tint shift I had to use minus green and milky filter to clean them up.
I have a number of lights with HL2X 1800k 80CRI. they are fantastic… and can be dome sliced to lower cct.
I’m still waiting for Firefly emitters to arrive