Thanks. Looks like yet another XHP35 light that falls way short of advertised output. Are there any 1x18650 lights with the XHP35 that actually hit the numbers they claim? Besides Zebralights, which advertise lower numbers to begin with.
Good to know about the Olight. The Niwalker isn’t surprising - it’s a big 4x18650, and appears to use a 4S arrangement. The multi-cell lights don’t have the same challenges regarding the driver - they don’t have to boost voltage as far, and they have more space to work with. It’s mostly 1x18650 lights (Klarus, Armytek, now Kaidomain, etc.) that seem to have problems.
The numbers do make sense though. The XHP35 HI is basically a XP-L HI with a 45% larger die. It produces around that much more lumens and that much more heat. For 2000 lumens you would need three times the power and thus heat of the XP-L HI. Who wants that?
I got today my first prototype design boards from Schokis driver circuit with a 50W boost chip
I will test it next days, if the massive enhanced thermal connection added to the layout works well, then also some fine tuning the capacitors to get rid of switch on spikes and other stuff needed
@BanL
I am searching for a 10mm XP MCPCB. The only one i can find on the net is the 10mm XP Sinkpad but it is only available at a few shops and only in the US.
So maybe you are interested in selling this size. Many of the small EDC light mods require this size. And i think many people from the EU would be happy to be able to order these MCPCB´s without paying 15$ for shipping from the US.
Some optics are transparent down to 365nm. Not Carclo, but KD is using their own optic, I think I remember testing it for 365nm transparency and it was pretty good but not close to 100%.
Edit: just checked a KD triple optic again (it came with a triple Nichia 219B board) and the transparency for 365nm light (SST-10) is 50% the most when going through the <2mm top plate, so with the light travelling through the much thicker reflector part I expect considerably less than 50%.
Unless KD uses a different optic for this triple UV board…(my guess: =not likely)
Hi TheOnlyDocc, nice to see you around again, it has been a while. :+1:
I agree, a 10mm DTP 3535 board would be fantastic, I’m out of them for a while and although I’m a fan of VOB, shipping from his shop to Europe is pretty expensive.
I ordered one a few weeks ago, should arrive one of these days, then I can tell you. My prediction is that just like all 365nm leds it emits visible stray light, and probably more than the Nichia 365nm leds.
I would be interested in the 12mm DTP copper mcpcbs for 3535 LEDs, especially if they come at an attractive price for 4, 8, or 12. (for now, I am assuming they won’t be cheaper than a quad 3535 MCPCB, which is one reason why I would want them)
Note: quote was edited to separate image and product link for convenience.
I sort of second L4M4's interest on this host. Zoomie confirmation? Looks neat.
The pill looks like it does not have threads above the emitter deck, where the plastic retaining ring should go. This must be an optical illusion, doesn't it?
I believe amazing spill-free throwers can be made combining convex lenses with specially shaped reflectors tailored for the above lens.