Prototype 3 arriving 7 of 7 now!! The Q8, a BLF premium edition SRK type monster flashlight

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The Miller
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Dutcheee wrote:
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Hmm, IDK if 4 P cells can be charged safely. But the idea of having a system like the Convou BD0x sound really good. Snap on, waterproof, usable while charging, no internal micro USB port, I do not know how much it would add to overall build costs but think it is worth exploring right?

Now that would get me interested..
Any chance on using the light as a usb backup charger then as well? Maybe with an external usb cable attaching to the waterproof connector?
In that case I will be in! Would make it a nice travel light and have a backup charger during the zombie apocalyps Silly

For me no handle, the smaller the better.

heheh just thinking about it also adding the feature of powerbank might be hard to do.
Maybe not hard, but in terms of costs.
The convoy/dipper system is there, it works and looks good, well balanced with the small micro usb connector on the clipon thing..
Please check this review for the charging system
http://budgetlightforum.com/node/33514

Making it charge other devices means adding a bigger USB out port to the clipon charging thing.
Internally more components are needed.
Using th BLF Premium on site with a powerbank means having something to charge a phone/tablet, so you would be able to distract the zombies with Flappy bird anyway Wink

thijsco19
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The Miller wrote:
cmflippen wrote:
+1 on the tripod mount.

Any way we could run this thing off an external power supply? Seems like it would make for a good work light.

Hmm, IDK if 4 P cells can be charged safely.
But the idea of having a system like the Convou BD0x sound really good.
Snap on, waterproof, usable while charging, no internal micro USB port,
I do not know how much it would add to overall build costs but think it is worth exploring right?


If we go this route than we can make the clear insulator between the pieces of te button a battery indicator.
But charging 4 18650s in parallel is going to take a loooonggg time.

I rather have a lower price than the ability to charge the cells inside the light.
Just my €0.02

Abqjohnny
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Maintaining the low price needs to be paramount to it being a successful group buy in terms of numbers.

The Miller
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Yes agree!
It would be cool if charging could be done and keep the pricing.
Same with the tripod nut.
Always good to have something to give a party one is negotiating with.

Jinx
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Add me for 1 please.

I’d prefer no internal charging, spend budget on better quality/driver/emitters. Internal charging I wouldn’t use, it can cause issues (was it supfire that had major issues?) and adds to cost. Power bank is a better idea but not much, keep it simple, just a great flashlight Wink

sp5it
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I’m in.
Mike

 

jmpaul320
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please add me to the list

Would you mind keeping the wrong flashlight?
Best wish, May
Tmart service team

 

Soumil wrote:

PLEASE HELP ME GEARBEsT! IM LITERALLY CRYING!

 

strango
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I’m interested as well.

Against:
- handle, nut for tripod
- lanyard
- internal charging
- AR coated lens
- tailcap button
- any odd accessories like colorful manual, gift box, spare lenses, etc (except o-rings)
- ???

For:
- good design for better cooling (led shelf integrated into body)
- moonlight + turbo (3-4+ kLm for just few minutes until stepdown)
- srk like size and weight
- DTP star
- neutral tint (not the cold one)
- ???

Expectation:
- a lot of flood light, 3 (Low-Mid-Hi) modes (+moonlight, +turbo, hidden strob).

Just as an idea: what if use 3*xhp35/xhp50 instead of 4*XP-L(xm-l, 219c) ?
Will it increase price a lot ?

As for miniSRK…
instead of 4*14500 in parallel won’t it be better to apply for 1*26650? 1.5cm longer…

Jinx
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strango wrote:
I’m interested as well.

Against:
- handle, nut for tripod
- lanyard
- internal charging
- AR coated lens
- tailcap button
- any odd accessories like colorful manual, gift box, spare lenses, etc (except o-rings)
- ???

For:
- good design for better cooling (led shelf integrated into body)
- moonlight + turbo (3-4+ kLm for just few minutes until stepdown)
- srk like size and weight
- DTP star
- neutral tint (not the cold one)
- ???

Expectation:
- a lot of flood light, 3 (Low-Mid-Hi) modes (+moonlight, +turbo, hidden strob).

Just as an idea: what if use 3*xhp35/xhp50 instead of 4*XP-L(xm-l, 219c) ?
Will it increase price a lot ?

As for miniSRK…
instead of 4*14500 in parallel won’t it be better to apply for 1*26650? 1.5cm longer…

Good list you made there!

thijsco19
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strango wrote:

Just as an idea: what if use 3*xhp35/xhp50 instead of 4*XP-L(xm-l, 219c) ?
Will it increase price a lot ?

As for miniSRK…
instead of 4*14500 in parallel won’t it be better to apply for 1*26650? 1.5cm longer…


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.
TheMadcap
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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

strango
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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 Smile

Crazyeddie
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I’m in, thanks for putting this together!

Kkelleher
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In for four!

Tom E
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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.

thijsco19
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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.

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

strango
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1A per xhp35 is already 1625lm. *3led = 4875lm. 1A is for turbo only, imo.
strango
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do not mind having 4*xp-l Smile
just curious how much it will cost additionally to have 3*xhp35. more efficiency at lower current.

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I’m in.
Thank you.

The Miller
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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

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

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!

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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…

Alcius
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Please add me to the interest list. Thanks.
Dutcheee
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The Miller wrote:
Dutcheee wrote:
Quote:
Hmm, IDK if 4 P cells can be charged safely. But the idea of having a system like the Convou BD0x sound really good. Snap on, waterproof, usable while charging, no internal micro USB port, I do not know how much it would add to overall build costs but think it is worth exploring right?

Now that would get me interested..
Any chance on using the light as a usb backup charger then as well? Maybe with an external usb cable attaching to the waterproof connector?
In that case I will be in! Would make it a nice travel light and have a backup charger during the zombie apocalyps Silly

For me no handle, the smaller the better.

heheh just thinking about it also adding the feature of powerbank might be hard to do.
Maybe not hard, but in terms of costs.
The convoy/dipper system is there, it works and looks good, well balanced with the small micro usb connector on the clipon thing..
Please check this review for the charging system
http://budgetlightforum.com/node/33514

Making it charge other devices means adding a bigger USB out port to the clipon charging thing.
Internally more components are needed.
Using th BLF Premium on site with a powerbank means having something to charge a phone/tablet, so you would be able to distract the zombies with Flappy bird anyway Wink

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!

Gerrit
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yep, I`m in.

Let There Be Light

The Miller
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everydaysurvivalgear wrote:
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…

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.

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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 ?

Ian

The Miller
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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.

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I am in for one with Nichia or warm tint.

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