Does Cree even have a tint bin for that? Tints starting with ‘9’ or ‘10’, perhaps?
/me looks at the data sheets…
Okay, they have a special group of extra-yellow tint bins… so you want an AA3 bin? That sounds painful to look at. Anything warmer than ~3500K makes my eyes bug out.
I just noticed that the bond wires look different somehow……fatter maybe, fingers crossed they are because we are totally bondwire limited when we overdrive the XM-L2/XP-L class Cree emitters.
I would bet they will have lower lux performance than their de domed brothers but with nicer tint of course. This silicone looks about 0,6mm thick so it could have slightly bigger dome projection(but not much).
Those bond wires look pretty beefy...I have a sneaking suspicion that these are going to be incredible but only available for a short run. Better buy all that you can now once their available.. I'm thinking of ways to keep those bond wires cool so they can handle additional current...
From the datasheet measurements it should be ~0.35mm. See my post #43.
And it may actually be less than 0.35mm. From looking at other datasheets (like XP-G2) 0.65mm appears to only be for the substrate (not including the die + phosphor thickness).
This will be interesting. We were talking about such a setup here before it released—that is, leaving a thin layer of gel material to maintain a higher-K while still getting apparent die image of similar size. It could possibly help rid the double-tint drop from a reflective aperture on top of a de-dome. You would have a single tint drop from the RA reflection into the phosphor only.
The die window should have a consistent surface finish and thickness I would expect vs a liquid sealer, so it will be a good LED to test against a sealed one.
The bond wires could be thicker, but they also could be raised material in a “bump” shape giving an illusion from an angle.
I can see it now; the first CREE LED I’ll want an AR-coating applied to directly. :bigsmile:
It is going to be interesting to find out (i don’t think i will contribute much :D) what is more efficent, the lower flux bin of the XP-L HI but with a sustained CW going in to the RA, or the higher flux binned XP-L HD but dedomed but with a warmer tint + RA.
Or just the regular even higher flux binned XM-L2 U4 & XP-G2 S4 dedomed + RA.
MEM, check out if you haven’t already n10sivern’s test of some of the highest flux binned options we have nowadays, in the 1504 domed & dedomed. Very interesting, for example at least to me the XM-L2 U4 was a suprisingly good & efficient performer. I wish I had ordered more in my last order from Richard