Somewhere between 2mm² and 4mm² is the Goldilocks zone for this sized optic for use as a mid range thrower imo. I swapped a boost HX into my X1L and its a great ‘scanning’ pocket thrower. The loss in throw I would exchange any day for the lumens / beam angle. If the Yinding round 5050 didn’t have terrible tint, that would be the undisputed winner for nearly all throwers between 25 and 50mm bezel. The W1 for me drops out of favor right around 38-40mm, unless an aspheric/fresnel is being used with zero spill.
great info! Thanks for that, as I have been eyeing the X1L for about a month now, wondering how it'd be with a CULPM1 in it. I'm also thinking about putting a CULPM1 in my mc13
My X1L is currently in the ‘broken down’ pile. I hated the UI soooo much I just couldn’t stand it — I destroyed the driver trying to mod it. That and I think the best intensity numbers I got were like 110 or 115kcd iirc with the HL so i couldn’t justify it over my convoy m2 w1 (103kcd t.o.) with a forward clicky and one mode ui (how I like my throwers). The DM11 gets everything right here for me except its a side switch. I just have a really hard time with those ergonomically. Ymmv
I’m holding out for the ‘KR4S’ still. That is a 21700 KR4 with D4S optic. ‘KR1S’ could be the natural single emitter twin.
Ah, well good info again.. I forgot that the X1l has a different UI. I also would love this KR4s you speak of - the LEDIL optic is one of my favorite (and i think a Hank community favorite too), and I would be even more excited about the KR1s. I like the ergo's of the KR1 a ton. I have been rebuilding D1, and the KR1 still has an advantage, smaller lights like these, for me, need tail switches. One reason ive never really enjoyed the D4v2 - too small with a side switch.
True but not much (0.0015~0.0020), and for B35As Nichia reports turned out to be sligtly higher than what I got in diffusing optics at low currents, furthermore it decreases significantly at high currents (I binned about 10 of them), note that 519A and B35A uses the same chip.
The 519A also has the particularity of having the phosphor encapsulated in a glass lens with a silicone dome on top, dedoming it should be very straightforward, probably just by popping off the dome, which should lower the duv and significantly increase throw. This being (hopefully) much simpler to do reliably compared to other LEDs (all silicone) I would imagine that Hank could consider offering them domed and dedomed.
That said a ”k” bin bellow the BBL would be the best, I wonder if with enough order quantity one can request a custom chromacity.
i think a lot of people would buy it. And it may not be too much difficulty for him if he only offered 1 emitter option in the reflector version- the sbt90.2. That would mean only 1 reflector design would be necessary. Of course it would need a different driver than "regular dm11." but, maybe K1 driver could be used?
I don't know, something worth bringing up to Hank.
519A is pretty exciting - like an LH351D with better color.
It’s the B35A I’m excited about seeing in production lights though, in large part because it forces the use of a boost driver. I still hope Hank decides some day to produce a slim (18650, but slimmer than the D4) single-emitter light with the B35A. I’d probably need several of those (don’t worry, I’m definitely buying a DM11).