Good eye. That picture was taken before the emitter swap. It was more of a āhurray, I got it openā¦ and hereās what it looks likeā picture. I have updated my post to note this.
The new LED does have the white around the die and is not covered in a phosphor pour.
I didnāt test higher because itās a quick test without heatsink, anyway the tint is sunlike (0.0033), or slightly greener at lower current. Disappointing that itās not closer to the BBL
The beam looks quite good even with SMO reflectors.
At 0.1A with KR1 SMO reflector :
spot : CCT = 4605K (Duv 0.0033)
Corona : CCT = 4191K (Duv 0.0067)
spill : CCT = 4383K (Duv 0.0032)
for the data thefreeman. Cree is not the new Nichia but it looks decent, 90CRI Creeās that I have seen before were awfully green (that was before I had a spectrometer, so I can not back that up with duv numbers), this sounds better.
Maybe Iām not so good at reflowing, but these XHP50.3 HI 4500K 90CRI LEDs seem to be rather fragile when it comes to current. I went just above the limit on two of them at 12V and they burned out rather quickly. My heat sinking was probably not adequate either but for now I Iāll give up on these until someone who knows what they are doing does a more thorough test.
I got a 6v XHP50.3 HI doing 4k lumens I think the current draw is like 8-9 amps itās okay but Iāve only used it for testing. I tried to reflow one and the dome melted.