I already took a set of both of your 95CRI SST20 tint offerings (HD2 and FB4). Probably I will take also some of the FA1 requested by SKV89.
I know, keeping up stocks of different emitters might be risky sometimes, but could you please source not just FA1, but GD2 tint as well?
I think, those could be very promising tints (I always looked for something between the āusualā CCT offerings /5000K, 4000K, 3000K/ - 4500K is a true neutral white, while 3500K is a pleasant warm (but not overwhelmingly warm) white).
Since there havenāt been any updates in a while, I was curious if any place besides Kaidomain offers these. It looks like Mouser might (if you can stomach their shipping prices).
They say not in stock, 5 week lead time, but they also say the minimum order quantity is 1. I donāt know if that means theyāll stock a whole reel on the expectation of future orders if somebody orders as little as one, or if your order would go into limbo if you donāt order a full reel.
I donāt know if this is even useful to anyone, but since I took the time to find these, hereās the best bins I saw in the high CRI versions, XP footprint (A120). The ā##2ā at the end of the part number is a chromaticity bin kit covering 4 possible quadrangles, 2 above and 2 below the BBL. A ā##1ā would indicate 16 possible quadrangles. You canāt specify which exact bin you would get.
The 3000K version is equivalent to what Kaidomain has, except Kaidomainās are known to be below the BBL. The 4000K version is one flux bin higher, and Maukkaās test showed the Kaidomain J4 version as roughly equivalent to Nichiaās D220 flux bin.
Thanks. Cool to see that they are available from another source. I see that mouser is also offering the the cooler lower CRI SST-20s, too in MOQ1, but non-stocked.
They also list SST-40s now, and in 5000K and 5700K CCT, which I havenāt seen anywhere before. Unfortunately they are MOQ 500.
I hope someone bites the bullet and tests these cause in my opinion the 4000K from Kaidomain is just a bit too green, even more so than LH351D which doesnāt bother me too much.
I have the same emitter from that review. I like the other properties of the LED I just mean I want to see what tint this specific reel is from Mouser since I think the Kaidomain one is more green than I prefer.
The Mouser emitters could come from the same bin as the Kaidomain emitters. I donāt think there is any way to know until theyāre received. Iām pretty sure Mouser just takes the reels as received, and trims off the ordered quantity without even looking at the bins.
The kits come in 4 bin and 16 bin sizes. The links I dug up are a 4 bin kit.
Hereās the chart Maukka posted in his review from the datasheet. Kaidomainās current stock are FB4, so it makes sense that theyāre a little bit green:
It could be, yes. But at least itās a different flux bin so you know it wont be the exact same thing either way. A chance iām sure someone is willing to take
Even the FA3 tint bin that Fireflies is using is reported to be a little on the green side and requires a minus green filter to perfect. If we can source the FA1, FA4, FD1, FD4, I will be willing to buy at least 25.
I can organize a group buy if enough people are interested in the 3500k 95CRI LEDs. Goal would be 250. Just let me know if yāall think it is doable. They are estimated to ship in January.
We may have to go with this new Luminus LED for the BLF Lantern project, as apparently the Samsung 351 series in 2700K & 5000K are hard to order for the manufacturer of the lantern, but have not seen or tested this SST-20 emitter yet.
Personally I think it would be a good option. Going with CRI above 9080 really gets quickly into diminishing returns in terms of light quality. Going above 9050 quickly reduces efficacy. SST-20 is already quite inefficient, but I donāt think itās too inefficient for this lanternā¦and for a CRI 95 emitter itās good. Itās quite a bit smaller than LH351D which negatively affects its performance at high currents, but this lantern wonāt have high currents. Itās already quite rosy and tint mixing will make it even rosier, we can expect CRI to suffer because of that. But is that going to make the light more or less pleasant?
