Q8, PMS SEND TO THOSE WITH ISSUES BLF soda can light

Definitely an interesting idea.
But the xhp35 and xhp50 are higher voltage LEDs so in order to get it to work the batteries needs te be in series instead of parallel.
And most guys don’t like a 4s setup.
Also don’t forget it will probably increase price.

Count me in, but if we have advantage of 3-4 batteries then i prefer having something like mt-g2 or 6*219c. I also prefer neutral colored leds instead of xp-l

my chinesee srk clone uses 3*xm-l2 in parallel and 4*18650 in parallel
roche m170 uses 3*xm-l2 in series and 4*18650 in parallel (LD35 -stock driver from roche m170 designed for 3*XM-L2 in series ~$10 in GB store.)

from cree site:

  • XM-L2 - Typical Forward Voltage 2.85 V @ 700 mA
  • XP-L Typical Forward Voltage 2.95 V @ 1.05 A
  • XHP35 Typical Forward Voltage 11.3 V @ 350 mA
  • XHP50 Typical Forward Voltage 5.75 V White @ 1400 mA (6 V) or 11.5 V White @ 700 mA (12 V)

I ’m not sure about the original idea but if we are to use 4*xp-l in series (i.e. forward voltage 2.95 * 4 = 11.8V) it is almost the same as if we use 3 * xhp35 in parallel.

to put all in a nutshell - we can use “s” or “p” for 18650 . all depends on driver :slight_smile:

I’m in, thanks for putting this together!

In for four!

All true, but going to a non-standard series cell arrangement is probably more $$$. If a boost driver is needed, than the high amps is not going to be easy or cheap.
Really hope we stay on course here - 4 regular 3-4v LED’s (219C, XP-L, XM-L2, etc.), 4 parallel cells: simply, a few LED options, up to 5+K lumens, maybe up to 3.5-4K using 219C’s.

Of course doing the math on the high voltage LED costs probably rules them out from the start. Qty 4 LED’s on copper per light, goal of the light being $40 shipped.

Didn’t know that the m170 has a boost driver.
But still, if the driver puts out 3A (which is pretty high for a boost driver) then its only 1A per led using 3 xhp35 in parallel.
If you use 4 18650 in series and use a buck driver you might get 9A in total or 3A per led.
That is really a big difference.

yea put me down for one please and if you need help let me know? I have connections at gearbest if you need it.

1A per xhp35 is already 1625lm.
*3led = 4875lm.
1A is for turbo only, imo.

do not mind having 4*xp-l :slight_smile:
just curious how much it will cost additionally to have 3*xhp35. more efficiency at lower current.

I’m in.
Thank you.

Yes 4 x regular emitters
Cells in parallel.
But with the integrated shelf and good threading nothing is stopping people to mod it into a XHP, cells series light :wink:

That is great, thanks!

If the older reviews of the SRK are read the 4 emitter is favorite in terms of flood vs throw.

Also it has a nice symmetry, 4 cells, 4 emitters.
Hopefully somebody will mod it into a NW/R/G/B light.

So I can’t wait to see the mods on this thing
XHPxx
Multi color
Man oh man this should be entertainment!

You could always ask Solarstorm if they want to build the light if you cant find a company?

I have a solarstorm T4 i like it. I asked them questions and they are always friendly and happy to help…

Please add me to the interest list. Thanks.

Haha, no I don’t think this is a feasible option for this GB.
Goes on my long term to-do mod list :wink:

That BD01 charging option looks really nice. The rest of the light not so much… Thanks for the link!

yep, I`m in.

Could you PM me the details, they have soda/soup can lights and Thorfire has not responded after the pm with details of this group buy.

Do you mind me asking who you have been in contact with at Thorfire ?
They have an employee who is on this forum named Barry but my communications with them via email have always been answered by someone called Celine, who TBF is very helpful.
Also remember that due to the time difference Thorfires replies will be arrive in the middle of night here (think they are 8 hours ahead of me here in the UK).
I did once actually stay up till about 4am & was able to message Celine via email with virtually instant replies from her.
BTW with regards to the light I would keep it simple ie no onboard cell charging, no power bank facility etc.
Have you given them an expected number of units for the GB ?

Yeah via pm, got reply after two days, signed by somebody else then Barry.
Please pm email address of Celine.
Thanks.

Edit sorry Bella-Headlight and everydaysurvivalgear I will send you a pm instead of asking you to send me one, impolite of me to do so.