Hello BLF,
I am selling the following bare emitters:
Nichia NF2L757GT-F1 (Optisolis)
- 2700K (Rfh00/sm273), $0.50 per pcs
- 4000K (Rfe00/sm403), $0.50 per pcs
Nichia NF2W757GT-F1 (Optisolis)
- 5000K (Rfc00/sm503), $0.50 per pcs
- 6500K (Rfa00/sm653), $0.50 per pcs
Shipping fees: $9.50 (By Air and is tracked)
Payment method: PayPal
Note:
Reserved.
Can you tell me where these LEDs are from and how old they are (Datecode)?
From which country did you ship?
I will be shipping from Singapore, the shipping fee is fixed.
The first 2 characters is O5 for my “LOT”, May 2024. Got them directly from Nichia.
Updated shipping fees.
I am interested in some Optisolis.
Can you tell me tint and duv for these? You should get some sort of report with these information from Nichia.
I don’t think Nichia provided that personally, but I measured them myself using my Colormunki Photo.
2700K
4000K
5000K
New read for 6500K, I suspected that there’s something wrong with the first read. Maybe I left it on the hotplate for too long, anyways I re-flowed a new one.
6500K
And possibly, you can assume the rest of the other CCTs also have slightly bad readings due to my masterful re-flow.
Your results seems pretty consistent with Nichia’s datasheet (not sure why they only list 1 spectrum for multiple CCTs). 2700K result corresponds to NF2L757GT-F1 spectrum, 5000K result corresponds to NF2W757GT-F1 spectrum.
Thanks for this, very helpful! For anyone else reading this, they correspond to a duv of:
2700K: -0.0007
4000K: -0.0012
5000K: 0.0008
6500K: 0.0046
And you can make triples with these: COPPER PCB 20MM TIPLE NICHIA OPTISOLIS
Or singles with these: Copper MCPCB for B35AM
Thanks @ilovelights5000 for the Optisolis emitters 
I have now completed my collection of high CRI LEDs (Optisolis, Sunlike, Thrive). Optisolis and Sunlike is surprisingly similar, I could barely tell the difference even with them side by side. To my eyes Thrive generally has higher duv/ is yellower, probably closer to sunlight.
