can you build the two configurations i asked for?
Sorry,currenty I don't have 250kOhm 0402 resistor required for 12V configuration(but I can stack 3x 750kOhm resistors?) Are those xhp LEDs 12V versions?
yes - for a xhp35…
stacking resistors is okay for me!
Max current?
Since this led looks like 4x xpe die in series,2-2.5A maybe?
i would try with 2A for start - how can it be changed? change sense resistor?
$30 sent via pp for friends for 2 drivers in standard 4.2V configuration.
Transaction wednesday july 29th 2015 at 00:20AM CET. Thank you!
I must change big shunt resistor first for 3A max.,and then current can be fine tuned with usual small current set resistor.
Back to thread, there is 10 drivers left,I'm counting only those with pp sent as sold,so if you want your drivers,send PP.
For USA members,contact blf member kkw if you want small quantity.
Also,some of those who sent me PP forgot their shipping address,you can send me address over PM.
how much have i to paypal for the two (6 and 12v) ?
2*15 + 2*1 +0.1+0.5 =32.6$ ,if you want parts soldered,+2$ more.
35 USD sent - thank you!
PayPal for friends sent!
Thanks and also good luck to Old Lumens:)
All payments are received,so I sent payment to VOB.
Thanks to all members!
Drivers arrived in the (letter)mail this afternoon.
Nice touch: sealing it in an antistatic foil/bag.
also here…
thank you!
btw:
there are 2 additional smd resistors in the bag.
what are they for?
Had not seen them (yet) because they were hidden behind the “CAUTION” logo 
I’m @work right now, hope mine are already in my letterbox! 
I think, the resistors are for modifying the maximum current. :?
Those are NTC resistors for external temp. sensing.
Just to confirm: Drivers happily arrived here in Germany.
Top packaging, top speed, thank you very much!
I received my package today. Vinte77 and ohaya, I have yours separated and in envelopes. They’re wrapped in cardboard, and marked “Do not bend”. I’ll get them mailed today or tomorrow.
Thanks again KKW for handling the mini group buy.