After my unsuccessful attempt in finding a high CRI 5mm LEDs for Djozz's C01, I continued my search. Now, I've found what appears to be a bigger version of XHP35 HI.
Here's the FC40. The Die size is equal to the XHP70, but the LES is 5*5mm. The LED is rated at 40W, and produces 3000-3200lm at 90+ CRI and CCT range of 5000k-5500k. (Note. I told them to make a 95 CRI sample for me, this one may actually be 95 CRI, assuming that the company messed up the label. I'm currently reaching out to the company about the label. Meanwhile, I will just assume the worse for now.)
Here's the light comparison between the FC40 and the XHP70.2 @5500k CCT at low-ish output due to lack of heatsink. Subjectively, the FC40 appears less green but more bluish (which is to be expected due to higher average CCT)
The company also provided binning chart and claims that they can assure that the LEDs made for me will always have A5 tint for 5000-5500k CCT.
I now ordered a pair of H2-Cs along with a pair of Sofirn C8s hosts. I will put these CREE's and GT's LEDs into one each and properly compare the light. Now I'm waiting for the host to arrive.
Link to sign up & participate in GB "https://budgetlightforum.com/t/-/58200":https://budgetlightforum.com/t/-/58200
I think they can make A4 bins. But the next time I will have to buy at least 70pcs/CCT. I plan to sell these anyway so I can ask them if they can. The C3/C4 bins is unlikely though, I asked them once and they said they are not making those.
The price isn't exactly cheap either, the ex-work price is comparable, if not slightly more than XHP70.2's, and so is the retail price should I sell one. That obviously means I can afford to buy one CCT's at a time. I should open a vote to see which CCT's you want first and second. Although there was a poll by Clemence and that 5000k's are the most popular color followed by 4000k's.
Nevertheless I will make sure that they can make 95+ CRI so it differentiates well enough from the XHP70's and justifies the higher price. They don't charge much more for better CRI though (though it costs lm/w to do it).
It’s on Aliexpress. The very CREE that I used in comparison was the 90+ CRI 5000k version bought from HotRed Store. The very same store also sells 6500k and 3000k variants. You get to choose voltage, too.
uhh, nevermind, the 90CRI version only available there in 5000k.
You might try your luck here, but it’s 1000pcs minimum order.
Why do you call it a bigger version of XHP35 HI? Why not just say it’s like a XHP-70 HI? Anyway, I’m eager to see what the “collimated” beam from these look like compared to the XHP-70 when you finish the Sofirn C8 builds. Will you also de-dome the XHP-70 to compare with both LEDs being domeless?
No problem with the reduced efficiency. We expect that with all high CRI variants. If you check CREE specs, you can often find that their high CRI versions of emitters are at least one or two brightness bins lower than their low CRI version of the same emitter. In other words, the high CRI version just isn’t available in the highest brightness bins. Same with low CCT (warm) versions. They can’t make them as bright as higher CCT (colder) versions, so the highest brightness bins just aren’t available in the low CCT versions of their emitters.