Led4power.com : LD-4 CC linear drivers, ILC-0/1 illuminated tailcaps, optics, MOSX, copper DTP MCPCBs...

I sent some measurements to kiriba-ru for the C8F 21700 but you should express your interest to him as well. The C8F is e-switch and I suspect his e-switch driver may still be a ways off. Meaning, no “complete” kit for some time.

No complete kit is fine. With Sofirn’s revised driver (the first one had problems) it is still a very good driver and with 6x emitters, it will run alot more efficient if not a whole lot brighter.

The chromacity bin is: ebxD46. Looking at the Osram datasheet and plugging the coordinates into this website,

the CCT is between: 5849k to 6384k
Less cool than the Black Flat
Plugging the coordinates here:

the DUV is between: –0.0044 and –0.0043, which will at least ensure the beam will not be green, maybe it will be a bit on the rosy side. I like the pure white of the black flat. Hopefully this is about the same.

The flux bin is 6N
at 1A: min 315 lm and max 355 lm

Compared to the Black Flat sold on Mouser, which is 8M flux bin:
at 1A: min 250 lm and max 280 lm

Me too… :weary:
Still, boxes with plenty of parts are better than fewer parts. :innocent:

Maybe call them “White Flat” ?
Yeah, i just ordered 3 pcs…
They will find homes pretty soon though. :slight_smile:

I will put spacers this weekend, I'm busy more than usual, so there is delay for some stuff.

Is there any chance to have distance ring for standard reflectors and this new osram?

I don't think there is one, probably simplest solution is to rotate 3535/XP centering ring.

Just ordered 3 of them :slight_smile:

Apart from the LD4A, are there any alternative 2S (buck) drivers for tail clickies that would be appropriate for the new Osram-LED? So far, this one here looks okay but it cannot deliver the required 5 amps of current.

http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board/S025382-FX1-20mm-3V-8_4V-2_5A-1-cell-or-2-cells-2-Group-of-3-Mode-and-5-Mode-Driver-Circuit-Board

The best would be a buck driver (2.9V - 8.4V), e.g. in a Convoy L2 (short and long tube) running at full power over the entire voltage curve.

MTN buck driver. But it’s out of stock…

I'm not sure if this one is for tail clicky lights or e-switch lights. It's also quite expensive to get these things from the US to Germany (shipping and hassle with customs).

Contact to your neighbour Lexel :wink:

This type of driver is rare as a spare part. It’s probably easier if you just buy a used 2S light with buck driver (maybe a Fenix tk-35) and switch out the sense resistor to get a higher current.

For continuous operation I would go with 4A. I had problems after a while when driving a Black Flat at 4.5A for longer periods of time in a large host with very solid heatsinking.

The FX-35 driver in the Convoy L6 is a 5A 2S buck driver that’s also very, very cheap. I don’t know how well it works with 3V LEDs though. Normally it shouldn’t be a problem. It can be bought as a spare part from Convoy.

Look in the Convoy store on AliExpress.
There is a 3 mode buck driver there, and could well be resistor modded without heat problems to 4 - 4.5 Amperes.
It is a double PCB diver, but no parts on the bottom PCB.
I think it’s around $ 6.

Danke @ The_Driver! :beer:

Bedankt @ Jerommel! :beer:

Complex little driver! I just put a 6A LD-A4 in an Eagle Eye X6 host that came in today. I soldered two 20mm copper boards together for height, used a 35mm TIR with a deep narrow “cup” over an XP-L HI and connected these with 20 Ga Turnigy leads. Set up for 5A, with 4 levels and moon mode engaged it works pretty nicely.

The large TIR will show it as unique, the LD-A4 guarantee’s it. :wink:

Where did you buy the TIR for X6? can you give the link please? Thanks Dale.

I honestly have no idea. It was in my kit, appears to be new, was in the black plastic holder and I had to remove it to fit into the bezel of the X6 which was a little tricky. Works pretty neat…

Was it from Justin?

I have bins and bins of bits from Justin, as much or more than what I already had of my own. His stuff and my stuff together makes for a LOT of stuff! I can’t remember my own purchases, still finding things in his stuff that I didn’t know I had.

Y’all just can’t know, it’s like he’s here with me all the time. :frowning:

Bittersweet, at times. Uplifting in other moments. And so it goes…