21v to max 23v. In my testing, 15v is LED cut off (2.5v per die). LEDs are in sets of 6, and four sets. Each bank of 6 is independently wired on the board I have. Each bank pulls 700mA to 1000mA. The board is copper.
Wayne
Have not done enough testing to give you a good answer. Normally optics have less side spill than reflectors, and that’s probably the case with this one. (This is the largest collimator I’ve ever seen.) The beam is said to be 15 degrees. For comparison, the ST90 Search and Rescue is 5.5 degrees, the Big Bruiser is 19 degrees. So the beam will not be considered narrow, but not as floody as the Big Bruiser.
Wayne
How about a Kong-21 with those instead of XM-Ls, of course powered at 90 watts a piece. :P Or a P60 drop in. >)
From the close up those definitely look like Cree EZ chips.
Got one?
Wayne
lol I wish.
Its not 9”, but how about the Ledil Lena reflector?
What a beast!
I can get one and try it out.
Wayne
Looking forward to your testing and design prototype Wayne! 
I’m glad to see you’re still working on new and amazing ideas mate - nobody comes up with unique high performing flashlights like you do!
Cheers
Andrew
All (+) contacts on one side and all (-) on the other. Very nice!
I realize its way to early to be bugging you about this, but how do you like the the beam quality with the LZP 12 degree optic? Is it an even flood pattern? What about artifacts, etc? Considering the lumen potential, I can see this being far more useful than something with laser-like optics. This might make for a great bike light!
Do you have a preliminary beam shot by any chance? :bigsmile: Im very curious about the optics LZP provides.
Thanks for your posts. Your lights have always amazed me!
Unfortunately, I really do not have a lot time to spend on this. I wish I did. Just so busy trying to fill orders, about all I have time for, and probably it will not be until next year before I get a prototype made. I might be able to find time to make a testing heat sink, though. As I indicated in an earlier post, probably I should not have posted about this yet, but I just got kind of excited about it.
Anyway, the beam I shine on the ceiling for a very short burst seems to me to be excellent. No beam shots as of yet. I’ll see if I can make some sort of something to hold the LED and cool it, and perhaps hold the batteries. Looks like there are at least 2 reflector possibilities, but I like the idea of the optics because it is smaller diameter of about 3 1/3”, so I can keep the head diameter to about 3.5”. This would be a long flashlight, but I think the power level it will be at might justify the size. It will be a ‘budget’ flashlight, if you have a big flashlight budget.
Wayne
Im thinking a hand held all the way with separate high capacity Li-Polymer pack…
i.e. Olight’s X6 , Apex even…
Maybe. I still like the idea of a ‘one piece’ unit, which is more my style of flashlights.
Wayne
Thanks for trying to get a beam shot with the 15 degree optic. You probably dont need to drive the LED at high levels to see how the beam pattern/quality looks. My fingers are crossed for a moderate even flood beam.
What driver and wiring arrangement are you considering?
I saw you mentioned having 2 switches. Will each activate half the bank?
With a large battery pack and so much heat to dissipate, have you considered active cooling? There are so many well designed CPU heatsinks available without the high cost.
Wayne, good to see that you’re staying busy while keeping an eye towards what’s next.
WOW!. Am I seeing WW and CW die mixed up here or some sort of lighting playing tricks?
Yes. Looks like a mix. If I use a 1” acrylic ball, shine to the ceiling, I can clearly see the two different color dies.
Possibilities of design:
1) 2D size (5 IMR14500 in 3AA to D holders), 3.5” diameter head, collimator with 15 degrees beam. Size of flashlight is reasonable, low and high power settings (run time on high will be short.) 5500 +/- lumens beam . I have some sample battery holders coming, not know if they can provide the 4 amps needed? I also plan to sell these battery holders separately, have about 100 coming soon.
2)5x 26650, long flashlight. 4.5” diameter head, 95mm reflector, reasonable narrow beam similar to ST90. Run time around 1 hour on high setting. Very big and long flashlight, powerful reasonably narrow 5500 +/- lumens beam.
3) 5x 26650, long flashlight, 5.5” diameter head, 128mm reflector. Beam pattern unknown but should be very narrow. Monster size flashlight
Wayne
Hi Wayne,
Have you had a chance to experiment any more with LZP?
Yes. I plan on building one of these as soon as possible. I’m thinking powered from 5 26650, pull 4 amps, run time maybe 1 hour. 5000 lumens or so. I’m going to use the 4” reflector, same as the ST90 Search and Rescue, similar head, long body. I gotta try and make it so it doesn’t look like a plunger, you know, huge head and long skinny body. Very bright beam but not as narrow as I’d like it to be.
Email me if you’re serious about wanting one of these. I have one LED, which cost me around $75 plus shipping. I’m not sure of the price but because of the high cost of the LED and metal and labor to make it, might be around the $400 price ??
I’m also planning on building a Big-Bruiser-9, three Bruiser circuit boards, powered from 3 26650, 9000 lumens and 19 degrees beam. Short body relatively, maybe a forward switch or maybe a tail twisty for simplicity and reliability. Pulling 9 amps and over 12 volts for over 108 watts. This would be the same beam as the Big Bruiser, but 3 times as bright, and similar short run time of 20 minutes or so.
Wayne
…to carry the mass of 18650s powering that thing on ones forehead…. 
…with a welding cable up over each shoulder.