Kawiboy, you running a xhp 70.2 in the MF02? If so, are you running a 12V 20mm mcpcb or did you mod a 6v mcpcb to 12v?
I just fried my xhp 70.2 while reflowing it. Trying to decide what im going to do next.
25-32mm MCPCBs fit with little modification
There are Maxtoch ones or Fasttech 25mm DTP boards available you can mod to 12V
The driver needs another resistor for switching frequency if you have a 12V configured driver and you want to go to 6V LED
current stays the same
Naw just upgraded the driver in the MF02 to a 4S running a K70 4S carrier I had to shave down the diameter of the PCB’s to fit the battery tube of the MF02.
I have (way too) many 70.2’s, the 1-BLF GT, 2-Thrunite TN42’s, 2-Lumintop SD75’s, 3-Convoy L6’s, 1-Convoy L2, 2-Jaxman X6 Hunter’s, 2-Surefire M3 Combat Light’s, 1-Surefire 900A, 2-Surefire M3 Combat lights I custom made, 2-Surefire 962’s weapon lights, 1-Thrustfire T90-2, 1-Yezl Y3…just off the top of my head, got enough 70.2’s! :person_facepalming:
Interested
in which driver?
Interested in NiWalker BK-FA306 with 4S boards
BK-FA30S
Interested in driver for the MF02 XHP35 LED 2.5A
and carrier modification.
interested in one for GT+XHP70, if possible.
Thanks Lexel
Is it the xhp35 or xhp70.2?
The XHP70.2 version.
Lexel will need to convert it to 12v. I think it can be done since the battery tubes use replacable pcb’s. Iirc, the mt09r has the same size driver as some of his other lights using the buck driver. I’m pretty sure he can do it. We’ll have to wait till he responds for more details.
Have you asked Texas_Ace? He is working on a bunch of mt09r’s right now and is closer in Texas. I don’t know if he has a buck driver made up, but he might. It’s worth asking.
Already did pay for the driver and installation from Texas Ace.
The driver is a 16x7135+FET 2S driver if I remember well.
I just wanted to know if Lexel had a compatible buck driver, since FETs are fairly inefficient compared to buck driver.
I have right now a very powerful Buck in development, but it wont be so cheap parts only are around 40€
With it 6V and 30A are no problem
Since TA seems to keep his new MT09R driver secret to make frofit out of it
I have a similar DD driver 2 FET designed but developing to final product takes time and work and wont be better than TA variant or cheaper
Just it would be nice he shares it so Europe customers can let their lights be modded here with less expensive shipping and I usually mod a lot cheaper
Pffff! 40€ for a 50A buck driver is a excellent deal actually. No buck converter can do this on the market, even ones for high power applications, especially at only 6V.
What I would really want is a dual channel buck+FET driver pushing 7000-9000 lumens on max buck, then switch to FET above that.
Would be amazing, but I doubt that is even feasible, especially within the constraints of a flashlight driver.
Edit: Meant 30A sorry.
40€ are just the parts for 30A
development and labor add up at least another 40€
on CFT-90 LED 3.7V 40A possible
400W is possible going to 5S battery carrier would add enough voltage overhead for 30A @13.5V XHP-70.s maybe the MF03 becomes a 400W Buck if they choose me to do it
sounds odd but only add about 5.5mm Carrier diameter to fit a 5. cell
I meant 30A sorry. 50A would be complete overkill.
BTW, Lexel, are you still selling the Haikelite MT07S/MT09R driver?
I would like to buy it, so I can compare it to the TA FET driver for the MT09R.
Also, what are its specs? Would like to know.
I am still selling those
I have here very unpleasant measurements of original MT09Rs
used full VTC6s
XHP35 HI NW 4000K 246k stock
with D4 5000K NW from kaidomain 289kcd which is just LED swap 17.5% more output
The CW I have from another person is totally crap measured stock
only 163kcd
I reflowed just half an hour ago the LEDs for this light and need to make drivers
then I can tell final measurements with my driver @7A