Well from these early reports it seems to be about what I was expecting. Great output with the fairly heavy disadvantage (depending on your application and tolerance) of the multidie dark cross.
I’m quite sensitive to donut or other artefacts in beams even when out and about at night, so I try to avoid lights with that “feature”. It’s also slightly counter intuitive that the very center of the hotspot that you aim to illuminate something isn’t actually the brightest part of the beam.
How is the tint variation based on beam angle? I realize these are very cool emitters and thus aren’t going to exhibit too much visible variation but would you say subjectively these basically emit light like an XML2?
This should be the new king of multi emitter flood lights though, looking forward to seeing some insane small form factor lumen chuckers featuring these emitters.!
i think it will make it even worse that problem and also lowering total output considerably making nul the only advantage this type of led seems to have.
a frosted TIR I think its a good type of optic for this led. 2, 3 or even with 4 places will be even better application .
I wonder how it would take to being de-domed? Or sanding the dome? (sanding the dome with 1000 grit paper leaves it diffuse, a very similar effect to an orange peel reflector…discovered accidentally on a slightly damaged MT-G2 dome)
Um, for the record the XHP70 doesn’t particularly like having it’s dome sanded with 800 grit paper. While it does improve the beam profile, the smoke kinda gets in the way.
And, well, also for the record…it doesn’t do well with de-doming in the hot method. Perhaps gasoline. But I can say that the dies appear to be 4 XM-L2 dies and if you get most of the phosphor off they make a killer blacklight.
Well, it's like all the other multi-die leds. It's for total lumens in a larger area and with a diffuser of some type, be it a TIR or frosted lens, or a heavy OP smaller short reflector. It's not for flashlights with any kind of throw, but it should make a good floody light. Imagine an SRK with three of these... Well, that and a lot of extra heat sinking.
yes an srk type of flashlights should benefit most from this led. driven with today standard of srk should benefit from higher lumen output. driven with ususal lumen we have today in srk should benefit from longer runtime. whatever path a moder chose, he or she will see easy benefits in one form or another compared to traditional xml. the srk will be more flody with less throw.
I only killed the one, have a second one that I’ll put in the Shadow JM26.
I put an MT-G2 Q0 on the 31mm MAXToch copper mcpcb made for an XM-L, needed that large diameter. She works! Nice beam, nice color, cells are charging so I can see how much has been lost. lol
It’ll be a much nicer light with the MT-G2 I think. But then, I’m addicted to the big softies…
Edit: How often is one disappointed with 3777 lumens? lol The MT-G2 in this Olight M3X Triton is making 3777.75 at start, with a low of 5.9 lumens. Better, the beam is beautiful as is the color. Works for me!
Nope, that’s not going to work for me!
Unless of course you seriously expect me to take my sunglasses off while walking the dogs at night?! Come on! :cowboy_hat_face: :~
But honestly I’m totally with you on this, I’ll take the nice, even tint of an Mt-g2 over a much higher output any day. Here’s hoping the Mt-g3 (if it’s ever released) will get closer to XHP kind of output while maintaining or improving the sensible array pattern and nicer tint properties.
It’s probably just me getting too picky, but I’m getting more and more impatient with emitters like the xml that exhibit really strong tint separation across the beam. It’s probably also one of the main reasons I like dedomed leds as they have a very even tint across the beam. Which, even if it is a ghastly shade of green at worst, your eyes have a much easier time adjusting to it because the light is one tint across the whole beam, not purple/blue in the spill and yellow/green in the hostpot as is often the case with stock XML/XML2s.
The beam color is different in several stages. And there are artifacts, X marks the spot, that are seemingly impossible to get rid of. I think an orange peel reflector would help a lot here.
I was wondering about that, it won’t help much in a single emitter light but in something like an SRK with 3 emitters.
How about taking care to rotate each emitter by a certain amount (30 degrees seems a logical starting point) and also having each emitter slightly (or heavily?) off center in their reflector. I wonder if a good combination of these two elements can help to “fill in the gaps” associated with multi die emitters. Seems to me the biggest issue with these emitters and the mt-g2 (to a lesser extent) is that the center of the cross, or darkest part of the emitter is exactly at the focal point of the reflector. Maybe there’s a way of nudging this center point far enough away to bring an illuminated part of the die more into play, then hopefully blend out any ringyness and inevitable artefacts across the three reflectors.
Just a thought.
I’ve been meaning to do a bit of software simulation stuff regarding this type of thing and it seems like a good opportunity to give it another go.
I found the colors to be more of a nuisance than the artifacts. A dim X in the middle of the hot spot isn’t so bad, with some distance you don’t even see it (the great white wall reveals all) but the color differences are always present.
One of the 4 dies had phosphor pulled off. I was de-doming it at 12A, had cut the circular part of the dome away from the substrate and that did come off clean, but that one silly die…
The die’s look exactly like 4 XM-L2 dies stuck in together, 2 have the wires on the same side, one on top, one on bottom. So the 2S2P shows pretty clearly in the bond wire layout.
Edit: Pretty sure it’d de-dome clean in gas. Definitely a tighter beam, the x is still there though, and the color ringing is worse.
Yeah for sure, dedoming seems to be the only decent fix for colour/tint variations. At least in my experience with XMLs, I’d imagine the same will apply to this emitter?
…hmm but with a dedomed XHP and a light minus green filter to get us back to a nicer tint, we’ve probably dumped all the extra lumens that we had over using an Mt-g2 in the first place… :zipper_mouth_face:
Edit: colour ringing worse after dedome? Wow that surprising, are you sure no phosphor was removed in the gasoline dedome
Edit: Edit: Sorry misread that, yeah I’d imagine gasoline is the way to go. No real chance of it going wrong as long as you’re patient, hopefully it’s not stuck on there more solidly than a standard XML/2
I did see three different colors in the one I tried. I didn't notice them after I took it outside. They seemed to blend out after about 10 yards. At 50 yards, it was just really bright white and had a huge spot, for a deep reflector. About 1.5 times the size of the MT-G2 spot in the same reflector, but I could still see a little of the black cross even at 50 yards. That's when I gave up on it. Small reflectors that are OP, heavy OP, would hide the cross quite a bit. It looks just like the MC-E and the old P7 leds and lots of them were put into lights. I think, if I remember right, to get rid of the cross, (well mostly get rid of it), the reflectors had to sit even with or just above the top of the substrate. I may be wrong about that, but of course, it would be the first time I was wrong.
