Looks good: Basically its a 12V version of the XP-L ( single emitter, available in domed and “High intensity” versions) with some very interesting characteristics.
-Available factory “de-domed”.
-Available straight from the get go with minimum CRI of 90 at tints up to 7000K (at ~1000 lumens @ 13W)
–1850 lumens (1480 in de-domed version) at 13W in an XP-G / XP-L sized package for the lower CRI versions.
Sounds like its going to make quite a splash on the mutli-cell side of things.
Did see it but decided as it was more speculation then confirmation a new thread was the order of the day.
As for Boost drivers I believe something suitable already exists in the hand-held laser crowd. I’ll try find it, unfortunately if I recall correctly they are around $20 per driver.
edit: here we go, something like one of these should do the trick, current out only needs to be about 1 A at 12.5V, which would mean around 4-5A input from a single Li-ion.
Aha! You’re right! I had never scrolled down the Datasheet yet. The pictures at the top of the Datasheet don’t show any lines at all, no matter how closely you look at them. Interesting that on the XHP35, there is phosphor coating all the die area. The XHP50 and XHP70, I think, have gaps in the phosphor between the individual dies.
I can imagine a 2XAA light, modded to use one of these, with 4X14250 cells powering it in Direct Drive! Or, a 4XAAA light, using 10440’s. Anything larger would be capable of driving a XHP50 or XHP70, so it wouldn’t make sense to have one of these in a larger light.
Another possibility is using set ups that use 4-18650’s to run say 3 XM-L’s in series to now run 3 XHP-35’s in parallel. Now we’d get less current through switches, springs and wires but have better wattage. Tiny Monsters from Nitecore and G, S, M series from Eagletac.
This is kind of exciting! 4 dies, packed very close together, might not exhibit the dark donut hole effect of it’s siblings, and factory domeless with high CRI? Wow!
Notice the dots are not lined up the same direction on the individual dies, but the line between the dies is very marginal…
Probably has something to do with the size of this thing. It’s XP size. Not to mention, the dies are crammed tight together. There probably just ain’t no room for the trickery it takes to get a dual voltage option.
I noticed the die lines running through it. I don’t think they will be visible when its running. I guess time will tell.
It should be simple enough to run one of these off a single Li-ion while still maintaining about 90% driver efficiency, in fact I think because of the nature of boost circuits it should be possible to maintain a higher average efficiency then AMC7135 drivers from 0.05A through to 2A (if Vf is not too high).
I would think it's going to take 4 cells, like in an SRK, but 4 in series, to get the voltage. Once this goes up over 1.5 amps, then you will be talking more like 13-14 volts, so I would think 4 cells and a buck driver would be better off than a boost driver. Buck is usually more efficient than boost and takes less amperage from the cells. Or at least 3 in series and a boost driver.
I could see SRK lights with four of these leds in parallel and four cells in series, or a Courui with a boost driver and 3 cells in series.
Yeah, but why would you want all that power going to a XHP-35, when you could easily power up at least a XHP-50 with that, and with high-drain cells, a XHP-70?
