When will they be on your website? I’d like a few of those.
Send me your address to PM, I wanted to send you a few anyway.
:+1: PM sent. I will do a new Luxeon V test on this boards and am really curious how much different it is. My guess: slightly better performance but way easier reflow!!
Have you tried a Luxeon V in a flashlight yet and if so, what is your experience?
Will that be for sale on your website soon? Looks good! Really want to see this emitters potential on a properly sized board.
Thank you very much Sir!
Another test that saved my wallet…
I plan to use this LED to my DIY host zoommy, because It has almost round LED.
@djozz
I'll build Convoy S2+ with LD-A4 this weekend
@Jensen567
Yes, I'll put boards on my web page very soon.
Hey Neven,
Nice board!
Will you have the LEDs for sale too?
Hope that the boards and a high bin Luxeon V will be available in your shop. Can not wait to do a Q8 mod with this leds on DTP boards!
Nobody dedomed it yet?
I’m really interested in whether it throws better than SST-40…
As mentioned in the OP, my predictions for the luminance gain after dedoming (if at all it works) are not good, this being a flip-chip design.
I think it could be interesting in triples and quads, though it depends on the actual die size.
Finally added PCBs (and LEDs:) to webshop:
Luxeon V: link
L4P 4040 DTP 16mm for Luxeon V : link
Note: since I'm on vacation until next Friday, orders will be processed and shipped after 13th October.
:+1: :+1: :+1:
Wouldn’t this LED be a good choice for FET driven 3x AA lights (e. g. Convoy X3, powered by Eneloop cells)?
That is a good price for the DTP board for a Luxeon V.
I got my led4power 4040 boards in (thanks!) and did test the Luxeon V on this dedicated board, I will try to crush the numbers this weekend and post the result. In short: I found hardly a performance gain (very slightly though), but the ease of reflow makes this board well worth using. I expect the reliability to be higher as well.
I did one not so great mod with the Luxeon V, I put one in a Olight S15 (AA) flashlight and hoped that the low Vf, and thus less voltage difference to boost, would increase the current and output compared to the stock XM-L2. But it is apparently not that simple, instead, I found just 180 lumen with the Luxeon V, compared to the ~250 lumen of the stock XM-L2. It must be something measured different in the electronics that makes it get less current.
The VG10 with the direct driver and Luxeon V is still one h*ll of a light, great beam, great tint and with a half-drained 30Q it still puts out 1700 lumen (at still 6.5A current, 75lm/W flashlight efficiency).
Edit: some numbers corrected and added
With these leds available for well over a month (now at RS-online as well), are there more experiences out there using these in flashlights?
I found a similar effect with putting red 660nm and yellow 585nm LEDs in SF-348 lights.
They get less warm too.
Apparently there’s things about boost drivers that are counter-intuitive.
Isn’t it that the driver is just constant current and the only benefit from low Vf is longer regulation and (if present) higher efficiency?