I have likely a driver design that already fits or make one, they can contact me on Skype or here
live:s.vendel_3
Keep it single XHP70.2 sliced dome option with SMO
That's good news, Lexel. Thank you. What kind of driver design will you be able to provide? FET or Buck (for a more regulated but slightly less maximum performance)? Post #3 has been updated accordingly.
I also agree that a single XHP70.2 version is best as a triple LED design would lead us too far away from the main concept of Sofirn's SP70 including heat sink and driver design. A triple XHP70.2 light might be something for a separate Sofirn light. HaikeLite already fills this gap quite successfully with their MT09R and MT03. And then there's Lumintop's GT4 project ongoing, another great BLF project run by Texas_Ace.
If they upgrade the springs they will probably want to commit to 2x 26650 or 2x 21700, but not both. They can shorten the light if they choose 26650 or make it slimmer if they choose 21700 and springs will have more optimal contact.
Perhaps not for this particular light, but just to keep the idea alive:
I would love to see a TRIPLE TRIPLE… 3x 50.2, 3x 26650, buck driver.
EDIT for clarity: 3S 26650 cells powering 3P 6V LEDs using a buck driver. Battery tube would be extended by 65mm, new triple reflector in head.
Sorry for derailing… I realize that this is a substantially different light, but t was discussed in the original development thread.
Now back to your regularly scheduled programming.
For this SP70 BLF Edition, can we have a 80 CRI led option?
These are available at Arrow:
XHP70B-00-0000- 0D0HM440H
XHP70B-00-0000- 0D0HM440G
That is fine for me.
The only thing I would add would be a SS bezel.
Buck driver doesn’t make sense with 2S battery config and 3x LEDs. It’s too expensive (when done right) and too low current. Even ~9A buck would be only 3A per LED. If you had >12V (4S) input you could work with lower currents and still get high output.
Agreed. I don't think that 4x 26350 (=4S) will be a great idea for a 12V version. These cells will not deliver enough current and capacity, I'm afraid. And another 2x26650 tube extension would make the SP70 too long.
I was thinking 3S driving 3x 6V LEDs in parallel… so extend the battery tube by 65mm.
Sofirn already committed to 26650/18650.
Also, we don’t know if a better FET is needed, we are just guessing it does.
I guess my point was if they stick with 26650 they should shorten the battery tube slightly so they don’t have to use super long springs. The BeCu do not have as good mechanical properties and work better when they are shorter anyways.
What about throw version with XHP35 HI and new re design SMO reflector for 500Kcd+ ?
Sofirn may build a new light for that.
A driver from Lexel would be really awesome!
- Redesign reflector
- Narsil/Anduril UI
- Single XHP50.2
- 26650 or 21700 (whichever maximizes output)
- Keep the lighted side switch
...yeah. SS bezel would be cool.
Agreed. If they mess up the UI, that's where my driver will likely come from anyway.
Edit: Single XHP70.2, I'm assuming that was a typo/mistake
An XHP50.2 would burn up. You would need a current limiting driver to use that.
Interested, in max throw with a fair amount of lumins so not a flat white, don’t really like the throw from L6 and 70.2 looking at most of the throwers they are built around XHP 35 however they decide to get there.
I like the idea of being able to use 21700 or 26650
It is hard to design a battery tube and springs that can accommodate the 10mm difference in battery length. In order to get the longer ones to fit, the shorter ones become very susceptible to bump disconnecting. The existing battery tube would probably work better with 21700 (unprotected only) if you removed the inner springs and did not use bypasses. This has the side effect of increasing resistance, but would allow for both batteries. So there are always tradeoffs.
Oops, my bad. Definitely meant the XHP70.2