I wanted to do a little mod with this led, to see what it does, and to be able to judge the tint. Thinking about how to make use of the low voltage and high output, it was going to be a small 16340 EDC-light, not surprisingly my favorite type ;-) . But I think where this led really stands out is a 18350 battery EDC, like the Convoy S2+, with a FET-driver and a smooth reflector for some throw. But I did not have that host. Oh, and a single 18650 triple on a FET-driver will be a beast (2500+ OTF lumen), comparable with triple dedomed XP-L's but a bit better throw and light quality (even more true for the 90+ CRI versions of the 219C).
So I had this little Supfire S1:
The mods that were done:
*changed the switch to a small Omten instead of the dubious stock switch (had to mod the tail section a bit for this)
*bypassed the tail spring with 20AWG silicon wire
*Nichia 219C 5000K 83CRI on a 16mm Noctigon, Arctic Silver 5 thermal paste
*AK-47-A1 based single-sided FET-driver, 3 modes (5,25,100) + memory
*AR-coated lens, changed green o-ring for black one.
Glamour shots of the led (actually this led does not look that elegant with those white blobs on the side):
Performance (on a Efest IMR 16340 V2 550mAh):
*3,3A on high, quite steady, not skyrocketing down at all (how's that for a 16340 battery!)
*800 OTF (djozz-) lumen at start, 700 lumen after 30 seconds (mostly heat-sag). The light gets very hot after a minute, but keeps performing with handcooling.
*Convincingly bright hotspot, (have not measured throw yet, but mind it is just a small OP-reflector..)
*Nice neutral tint. It is difficult to judge the 83CRI for me, my brain has been trained to associate high CRI with a warmer tint (my favourite colour temperature is 3500K) and this tint is over 5000K. But the tint is very pleasant neutral white with no hints to green or red or whatever.
Conclusion: this is XM-L2 performance in a 3535-package. The only competitor for this performance in small EDC's is a dedomed XP-L (which is comparable throwy and a bit more efficient). But when the 90+ CRI version of the 219C is there, all my lights will have swaps again!