Lexel, such driver would be great for many lights even if it required buying MCPCBs from Led4Power.
That because:
Received Flat White LED with centre ring so I put it together with D1S stock driver. Center ring helps but it doesn’t fully focus the beam (i.e. hotspot is not perfectly round).
Becareful with center ring as the LED silicon is fragile. Mine got chip at the corner but still working ok 
Reflector size (Head to head): D1S have slighly larger reflector so more advantage in throw
Hot spot comparison from left to right
Convoy Flat Black, D1S White Flat , Convoy XP-L HI
Lux reading for hotspot at 8m distance
Convoy Flat Black = 3,392 lux
D1S White Flat = 2,897 lux
Convoy XPL-HI = 1690 lux
Clearly XPL- HI is no match with Osram LED
It’s strange that Flat Black out perform D1S white Flat . Maybe i need to focus the beam again on weekend.
simple answer is that its getting too much current and dropping in brightness again because of Auger recombination
White flat should run at 4-4.5A in a light not more
I am sure it will blast the C8 at 1A where the AMCs are fully regulating on both lights
What cell did you use in the D1S?
i used Samsung 30Q
Hey Lexel i actually ramped down D1S to match the tint with Convoy Flat Black. Im aware it take around 4.5 to 5A as ultimate performance and deteriorates as more current go above.
FET driver can get up to 8A and D1S on turbo it get abit blue tint and i would say around 7000k.
Dont know what other thinks but i like Flat Black more as it seems more robust and giving me better result. Im waiting for parts arrive then i will mod another Convoy 8+ with linear driver LD25 … White Flat vs Flat Black.
you used a 30Q on the white flat and it works? then why is everyone saying you need a new driver? i’m confused
The battery (30Q) has nothing to do with the driver, in case of the D1S it's an FET driver. The FET driver will pull all amperage it can get from the battery, i.e. using a high drain cell like Samsung 30Q it will draw far more than 4.0 - 4.5A. The white flat has its peak output at 4.0 - 4.5A. Overdriving it will not necessarily kill it but the output will be lower with the additional side effect of lots of generated heat. What you need for the CSLNM1.TG ("White Flat 1mm²") is a current-regulated driver that limits the current to max. 4.5A. So far, the best driver that works out-of-the-box is Neven's LD-A4 driver.
https://led4power.com/product/ld-a4-2-12amp-17mm-constant-current-led-flashlight-driver/
You still drive the LED at 8A just pulsed, temerature is OK because it averages, but the Auger recombination depends on current and this mainly let the output drop
also focus may be off
So to be fool proof…we would need a d1s, a black or white flat led and that current adjustable driver, and we would have a 320k lux light like Hank almost built….?
And some soldering skills
Edit. I understand the stock driver could be used and just use a low amp battery or smaller guage wires…I just want to be as safe as I can
I’m thinking the same. For my single emitter throwers, I have flat black. For my multiple emitters, flat white gave better results.
Anyways, looking forward to the matchup. Keep us posted.
Multi Flat White emitters, how many and were you using a reflector or an optic?
I made a triple FW with a sanded/polished optic, pulling 15amps 2100lms. didn’t like the the triple optic one bit, thinking of using them in a triple UTORCH C8F reflector next….
says driver is 17mm, d1s uses 20mm 
That’s not a problem:
http://kaidomain.com/Flashlight-DIY-and-Tools/Misc-Parts/S025087-KT02-17mm-to-20mm-Copper-Ring-Adapter-2pcs?limit=100
The problem is that as of now l4p driver does not support e-switch. Your Emisar will turn to a twisty.
Ok, guys, I have a few White Flats on the way from Hank… tell me what I have to watch out for. Isolate the MCPCB from ground, limit the emitter to around 4.5A, anything else I should watch for?
I have a D01 Courui that I fitted with a Ledil Seanna quite a while back. It makes over a mile throw with an XP-L HI… thinking of using this 3P 18650 with the White Flat for mega downrange pencil beam. Any thoughts?
Don't think the white flats required the isolation, black flats do. That sounds like a great host to test one out in!
Yeah, the white flats have a neutral thermal pad, IIRC.
Yes, regulated to under 5A, and focus focus focus. The centering piece that Hank has made will help with that.
Ok, yeah, this one has a separate negative contact pad for the leads from the driver so it’s not the pita the Black is. 
Will probably build a PZL driver for it… reversing e-switch 7 modes sounds good to me.
I didn’t get the centering ring but will use his old ones. The FR G10 1/2” thick board my Seanna mounts to is threaded onto the light engine part of the Courui, as such it can be threaded up/down to dial in proper focal length to the Seanna optic. Should work. (with this set up there’s really no need for a centering ring, actually)
If I’m not mistaken, the Seanna optic is capable of focusing a die this size to 1º… should prove interesting. There is a pre-focus TIR in the base with a 6” Fresnel lens up top. Ledil claims a peak candela value of up to 800Kcd, I’m getting 666Kcd from the HI if I remember correctly.
Ledil says it will do 1196 cd/lm from a Black Flat. At 94% efficiency. 1º beam, no estimate on Kcd on the Black Flat. No listing on the White Flat. By contrast, they say the XP-L HI makes 492 cd/lm at 2º.
Dale
How much for Seanna optic and where to get them?
I’m tempting
PZL driver? People still use those? Refresh my memory please. What does the PZL driver have that more recent drivers lack? I don’t remember it being really special when it came out, but then again, I could have ended the sentence with “I don’t remember…” and the effect would be the same. :person_facepalming: