Hey Neven, PM sent and thanks!! 
Very nice driver, thanks.
Wish I had the excuse (and the money!) to buy some of these. Have fun, guys!
now this is exactly what I need! I need to power an xhp50 in a host that takes 18650 and 17mm driver, will buy this for sure awesome.
You will need 2x 18350 in series to operate the xhp50 , i hope you already know . 
On the spec sheet it said, that you could solder a jumper on pin 1, for single cell operation. Otherwise 2 or more cells in series
With 1 cell you operate 3V leds like xp-e2 xp-g2 xp-l xm-l2 etc .
With 2 cells you operate 6V leds like xhp50 xhp70 etc .
This isn’t a boost driver so you can’t use 1 battery to operate a 6V led . That’s why you will need 2x18350 in the flashlight , with the 2-cell operation “pin” soldered and “6V parts” soldered.
ah right.
From which country you ship this driver ?
My pair shipped from Croatia.
Croatia, EU.
Time for price update : 12.9$ / 12.2€ (EU buyer can pay in € to avoid conversion fees).
Details are in OP.
Oh… now they get cheaper… Mine made it to the US yesterday!!!
Maybe he was looking to sell a set number of them before lowering the price, and yours was the one that put him over. In which case, we thank you! 
Will this fit for Convoy C8?
I would love to change the led with XHP50 OR XHP70?
This is not a buck or boost driver, it can be set up in 2S. So, with 2 18350’s you could drive a 6 volt led with this driver. That said, PM and ask if it works well for that or not… I have not gotten my first 2 in yet, so I really have not experience with them.
If set up for a 6Ved then it will work for MTG or XHP 50/70.
Hi,
Is this is FET Driver ?
Can I use it for two XHP70 in parallel , I want to give 10a to each one emitter , is this is possible with this driver ?
It is a constant current driver,but it has "software" DD option on high mode. 20Amp and two big 6V emitters would be out-of-spec for this 17mm driver.
I’ll be contacting you when i have funds.
Is the LD2 with e-switch also still available?