Me too! 
Thanks for working on this, J-Dub! 
This is where my collaboration is not fun. Anouncing disappointing news. Sadly, it is not a DTP board. :person_facepalming: :weary: Yesterday I had asked Simon to confirm that it was. The response I received today was that it’s a good copper board but it is not DTP. From the outset of this project the plan was that the XHP70 be on a good copper DTP board. Somewhere along the way that got overlooked. I of course immediately followed with a barrage of emails to him about the importance of correcting this. He is trying to source DTP boards now and will change the standard light to DTP copper ASAP. Any that have shipped already though are not going to have DTP under the emitter. I made it abundantly clear to Simon that BLF was not going to be happy about this so please don’t send him a bunch of emails. Of course if you’ve placed an order already and wish to put it on hold or cancel you should send a message through the Aliexpress system right away.
Keep in mind it may perform beautifully as it is, but I know we all want a DTP board and that Is what I expected. As soon as I have more info on a resolution I will post it here. I’ll add this info to the OP as well. Sorry guys.
Edit: For those of you holding out for neutral emitters the DTP issue should hopefully be resolved by then too.
When reading this from his page…“LED: CREE XHP70 N4-1C soldered on 20mm copper plate, the maximum flux is more than 3800lm”, I assumed it was a DTP board. I’ve already ordered mine so I’ll just order a XHP-70 on Noctigon from mtnelectronics and replace mine when it arrives.
Honestly I have never seen a standard FX-30 driver. I saw the FX-30 bare driver board when you referenced it long ago but I’ve never seen it as a complete driver.
Anyway, the answer to than question is that this is not a standard anything.
This is a new driver developed through Simon specifically for the L6 based on input from me, DB Custom and KawiBoy1428.
Nothing standard about it. 
I assumed the same all along this journey. It was supposed to be DTP but somewhere along the way that detail obviously got overlooked. My heart sunk a little when I got that response as I was disappointed and I knew there would be disappointment here. To non-flashaholics this probably wouldn’t mean a thing. My hope is that even these first non-DTP lights will still do well. As I said Simon is scrambling to resolve this as quickly as possible. Thanks for being cool about it. I know there are always going to be a few bugs to be worked out of a new design but it was a bummer to find one right out of the gate. I’m still looking forward to it’s arrival. If I try to find a positive angle, now get an unexpected opportunity to see just how much difference a DTP copper star will make vs. a standard copper star and see real before and after numbers. 
:person_facepalming:
We understand hiccups happen - thanks for being up front with us, not trying to hide anything, and working to resolve this asap!
The L6 cooling fins are tapered unlike the S70 which also has a solid (un-scalloped) head - why do you feel it will have better cooling?
Just curious…
Don’t sweat it J-Dub, I took this as good news knowing that we will be getting warmer tinted emitters and DTP boards.
Found this……Simply put “Direct Thermal Path”, lowering LED junction temperature. To understand how SinkPADTM technology works let’s first review the primary thermal path found in LED applications. In a LED the heat originates at the chip (die) in the same way that in a normal light bulb heat originates at the filament. The key difference is that in the case of a light bulb the heat is radiated into the atmosphere and in the case of a LED heat must be conducted through a series of mediums before it reaches the atmosphere. A high rate of thermal conduction means cooler running LEDs while a low rate means very hot and potentially self-destructive LEDs. If all substances had the same and low thermal resistance then it would not matter how many mediums heat would have to be conducted through before it reached the atmosphere. Since this is not the case, an ideal situation is one in which any substance with a low thermal conductivity & a high thermal resistance is removed from the conduction thermal path. These low thermal conduction/high thermal resistance substances slow the transfer of heat and therefore increase junction temperature. Typically conventional MCPCBs are commonly used to dissipate heat from a LED to a heatsink. MCPCB uses a thermally conductive dielectric layer to bond circuit layer with base metal (Aluminum or Copper). The key to thermal performance of MCPCB lies in its dielectric layer. Even though thermally conductive dielectric has higher thermal performance copared to standard dielectric material it is still a weakest link in the conduction thermal path in the MCPCB. SinkPADTM PCB approach overcomes this limitation and eliminates use of a dielectric material completely from a conduction thermal path. SinkPADTM Technology provides “Direct Thermal Path”, lowering LED junction temperature.
Wow. Thanks for the detailed explanation - glad it was just “simply put” :sunglasses:
I didn’t realize the L6 had a superior DTP since this review of the S70: Another Thorfire S70 review. Who likes lumen?
stated that the XHP70 “is mounted on the direct thermal path copper board”.
Love the looks! Much better look'n tube, like the original L2, and match's up well to the L2. Wait'n on the host though... Any ETA? Sorry, if I missed it, if posted earlier.
J-Dub, any news on a host being available?
Also, what size is the MCPCB and Driver? I can’t seem to find it anywhere.
Wow guys! Awesome light Any guess about the 50mA mode output in lumens ?
From post #524 mcpcb is 20mm non-dtp .
Just occasionally stumbling on threads here on BLF aaaand what do we have here
Looks promosing, for long time I have not had “a big light”!
Maybe I should wait a while for that DTP case to be solved.
I am surprised that Simon was not recognizing the importance of DTP board until now, considering he is also a flashaholic himself. 
I would even go so far to say this: If it isn’t DTP board, then non of your cool features (like these fancy cooling fins…) would matter! The importance of DTP has been proven again and again since a few years back. Also we need to realize that there are many copper boards (with cheaper price tag normally) which are actually not DTP. It is easy to use the DMM connectivity test to verify if something is a true DTP.
As for sourcing for the suitable DTP board for this Convoy L6, I would suggest Simon to just go with the Maxtoch DTP copper board which is already available.
Anyway, kudos to J-Dub74 and Simon for willing to make the change!
MaxToch makes a board for the XHP-70? I haven’t seen that one. I’ve only seen Cutter and SinkPAD.
They certainly do happen…even more often in this “budget” category. I would not try to hide anything. I’ve been given a unique opportunity to help both the BLF community and Simon (Convoy) and I truly want what is best for both parties. Hiding things is never a solution IMO. I appreciate comments like yours and the rest I’ve read that are understanding of the complexities.
Same size as the S70 
FX-30 driver. I believe some modifications has been done onto this driver. I bought a few of them for my XHP70 modification but it only achieve 4.5~4.8A using 12V (3 LG HE2 cells).