Excellent work Lexel. :+1:
Amazing amount of effort and contribution for BLF! :+1:
Good Job!
Hi Lexel, do you have any Eta on the 22mm buck driver?
I will order first prototype boards this weekend
I make them 4 layer for better heat dissipation, but this also makes the order in china expensive and I just odered a bunch of 4 layer 2 weeks ago, so I need to fill the 10x10cm with more boards before i do a new order
20mm Buck driver added
for Convoy L2
How many Lumen/Kcd can we expect for L2 with XPL hi with 1/2 LK50 ?
That Buck driver is targeted to drive XHP50.2 basically in that light
for throw you will have to wait for the Boost driver for XHP35 at 2-2.5A
this Buck should do fine up to 7A output but is limited to 2S input
Nice one Lexel,
how much are the buck drivers for the L2 / Xhp50.2 ??
Can Bistro be used with these drivers?
sure it is designed on Attiny25/85 based footprints
first driver that was requested for special 48A Output on good efficiency
Looking forward to the 20mm/22mm buck drivers. I got Jaxman Z1 and a Convoy L2 that could use the drivers.
New Boost drivers:
Order with those boards made today
1S or 2S Input
6V 5-7A or 12V 2.5-3A output
17mm
20-22mm
23mm special for Klarus XT Series
24-30mm
New generation of high current Buck drivers
up to 40A CFT-90 for BLF GT
up to 33A CFT-90 for TN42
up to 25A 6V v1 or 20A 9V v2 MF01/MT03/MT09R
Outstanding! Way to GO Lexel!
Supported firmware?
Price?
And where can I buy them? 
I second this request
Firmware as usual NarsilM v1.2 Gigathrower
ramping to 100% also possible
Bistro HD OTSM I have to look into to modify the firmware to have right modes
Prices:
for the Buck 20 and 22mm will be 17.5€
for the 17, 20-22, 23mm and 24-30mm Boost I have to calculate when they are fully tested, but parts costs about 5€ more than the LM3409 buck
for CFT-90 drivers 75-80€ depending on additional current and high current parts
this is not a cheap one just the parts cost more than 35€
Nice! The prices are higher than I’d like, but about where expectations were set. I’ll not be using them as often as I’d like, but I can already think of a few lights I’d use them for, like either driving the XP-L HI in my L2 harder, or replacing it with an XHP35 HI.
I’ll probably not be using one to build an S2+ with a shorty tube and a XHP70.2 or an XHP35 HI though, not anytime soon.