BLF 26650 pocket special

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texas shooter
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BLF 26650 pocket special

I want to put an idea out for a build or BLF special. With Cree’s new XP-G3 and it’s higher amps allowance, I thought it high time for another special light. A few manufacturers are putting out 26650 lights with a booster for the XHP series. I purpose a triple or quad XP-G3 running 6-8 amps about the size of a fat P60 using 3-5 modes. No voltage booster needed, just a good driver from the plethora of drivers designed by members here. Really picturing something for this http://budgetlightforum.com/node/46222 to use. The new Convoy L2 single cell body tube with Simon’s L6 10 amp tail cap switch. Everything stout, thick and heat ready for the amps. Cree publishes that their XP-G3 S5 will do 187 lumens at 0.35 amps and 777 lumens at 2.0 amps.

I’m thinking tactical light. Tail clicky and a side electronic switch. Tail clicky is on/off only, side switch is mode selection. What I want is for the light to come on and off at a setting I’ve set it on, no mode selection until I change it with the side switch. Example, it’s my backyard light I set it on turbo. Every time I click the tail it’s turbo whether it’s short burst, long presses, rapid tapping or clicked all the way on. If I set it for low or moonlight for the house, I want low or moonlight without having to scroll through all the modes blinding myself. Because of the output potential; moonlight, low, medium, high and turbo.

Edited by: texas shooter on 05/05/2016 - 15:11
Rufusbduck
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Why the mention of the boost driver for a 3V emitter? Less lumens than XPL HI but better throw especially if dedoming these can be figured out, that should please some. Might need a different solvent or hot dedome.
With the lower Vf might need to used current limiting again for a triple or quad.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

will34
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The L2 has a way too big head for a triple or quad setup, just imagine the weight of the heatsink big enough to fill the empty space… For a correctly sized 26650 host it should be done in a flat tube shape, since the optics have even less diameter than the battery. Something like the Olight SR mini in a more compact form.

blueb8llz
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Whatever host and emitter we decide, I hope it’s just a single 26650. And a side switch would be nice.
For those that want extra runtime, then a option for a extension or longer tube would be nice.
But I’m in!

I still have my blf a8 which was our blf 26650 years back. No longer gets used because so outdated

texas shooter
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Rufusbduck wrote:
Why the mention of the boost driver for a 3V emitter? Less lumens than XPL HI but better throw especially if dedoming these can be figured out, that should please some. Might need a different solvent or hot dedome. With the lower Vf might need to used current limiting again for a triple or quad.

I mentioned the booster as an example of what the manufacturers like Acebeam, Fenix, Olight and Armytek are going the booster route on larger higher voltage single LED’s I like small very bright lights but think the traditional route of triple and quad can do the job with existing optics and drivers can do the job better. Booster drives have lower efficiency. I mentioned the XP-G3 S5 because they have the same output as the XP-L HI V3 and I was thinking of 24mm optics. With LEDil 34mm quads any LED option is available. Probably the larger optics should be used. Much of this is just getting the design in my head. Something Shadow JM07 size and style, it’s a classic. 34mm optics, I don’t know what I was thinking when I wrote 24mm.

texas shooter
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will34 wrote:
The L2 has a way too big head for a triple or quad setup, just imagine the weight of the heatsink big enough to fill the empty space… For a correctly sized 26650 host it should be done in a flat tube shape, since the optics have even less diameter than the battery. Something like the Olight SR mini in a more compact form.

Sorry, I meant Convoy L2 body tube.

mattlward
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I have one of these on order… To me this will make a great 26650 pocket rocket. Can’t wait to get it and open it up! If somethink like this could be built it would be great.

Shadow JM20

EDC rotation:
FW1A, LH351D 4000k (second favorite)
FW3A, LH351D 3500k
FW3A, SST20 FD2 4000k
FW3A, Nichia 4000k sw40 r9080 (favorite light!)
FW3A, Cree XP-L Hi 5A3
Emisar D4V2, SST20 4000k

Rufusbduck
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Didn’t realize that the G3 had caught up to the XPL HI, that’s good news for tighter beam enthusiasts.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

The Miller
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interesting! subbed

Rufusbduck
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I agree that a side switched triple or quad with e-switch would result in a shorter host than either a tail switched or side clicky switched host but maybe anodizing the tail threads could allow a simple lock out to stop parasitic drain.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

Firelight2
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I wonder what the point of an undedomed XPG3 is. Isn’t it lower output than an XPL HI?

Rufusbduck
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Seems like magnetic ring would be best for that, then you could select the mode before turning it on. Somewhat like a spray nozzle on a hose.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

nqcken
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I am definitely interest

Tac Gunner
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I like the sound of this!

I’d prefer:
●No bigger than 45mm in diameter and no longer than 180mm, 40mm diameter would be ideal so I could use a traffic wand
●Neutral white
●Guppydrv would be a great UI option
●Make the optics user replaceable so we could choose between full flood or throw as the situation dictates.
●Maybe a GITD material under the optics.
●I would like to see at least 3000 lumens in high and a sub lumen moonlight light mode.
●I’d be fine with a side mode switch and tail cap if guppydrv or something similar couldn’t be used
●Dual lanyard slots on the rear
●Tailstand capable
●Strobe modes hidden if it even has them, if it does I’d like to see a flash pattern similar to the bicycle strobe on Vinh’s new drivervn3
●Quality knurling

gangstead
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I’m a sucker for pretty much any BLF build. I’m in.

grayski74
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Interested depending on how pocket size it is..

I.e. less than 12cm in length..

djburkes
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I really like the idea of a quad. I’ve built several triples…not in 26650 format but I haven’t built any quads. A nice 26650 powered quad would be awesome.

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I’m in!
Until then I’ll build a UF-1408 single 26650 DD triple 219c
Ultrafire 1408

"A black bulb which, when switched on, turns the room dark"
(Gyro Gearloose)

texas shooter
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Tac Gunner wrote:
I like the sound of this!

I’d prefer:
●No bigger than 45mm in diameter and no longer than 180mm, 40mm diameter would be ideal so I could use a traffic wand
●Neutral white
●Guppydrv would be a great UI option
●Make the optics user replaceable so we could choose between full flood or throw as the situation dictates.
●Maybe a GITD material under the optics.
●I would like to see at least 3000 lumens in high and a sub lumen moonlight light mode.
●I’d be fine with a side mode switch and tail cap if guppydrv or something similar couldn’t be used
●Dual lanyard slots on the rear
●Tailstand capable
●Strobe modes hidden if it even has them, if it does I’d like to see a flash pattern similar to the bicycle strobe on Vinh’s new drivervn3
●Quality knurling

It is not within my skill sets to actually build the light I’m wanting. I posted here in the hopes of getting some help from experts far better suited then myself. Maybe get the ball rolling and a “tactical” BLF 26650 special could come to fruit. This if it comes to be it will be running up to 8 amps instead of a wire by pass, would like to use 1 mm thick springs. Lots of springs out there and most are 0.4 mm to 0.8 mm, 1 mm do exist in gold plated that should handle 8 amps without issue.

Back to you Tac Gunner;
1.) Size I’m looking at 140-150mm length, 40-45mm head.
2.) I like the mix of output and CRI at about 5500-5700K range. However this is a preliminary and options happen.
3.) No idea this is where experts help out.
4.) Looking at 34mm optics and there are options already produced so that’s a go.
5.) GITD nice idea not sure of how.
6.) XP-G3’s at 2 amps do 777 each, so 3000 probably. Sub lumen moon not sure but would be a nice target for moon mode. I could live with 1 lumen moon mode. It’s up to the driver.
7.) Dual switches were from real world experience. When I grab a light out of a holster side switches are hard to find. Tail switches are easy to find and the grip is proper if you need to strike or punch. I want the side switch to do only mode change. Like a TV remote, you have an on/off button and a volume button and they are exclusive of each other. Tail switch clicky also locks out all parasitic E-switch drain. My ThorFire S70 has this exact mode set up, I like it a lot, no surprises for the user when turned on.
8.) Yes to the dual lanyard slots.
9.) Strobe could very well be just a double tap on the e-switch. But then that’s whats locked into for the tail switch.
10.) Knurling, I’m picturing the new Convoy L6 body tube cut for 1 cell and tail cap. That tube has 4mm thick walls should be very tough and heat absorbent. Simons using a 10 amp switch in a tail cap that’s nearly the same diameter as the body. This makes for easy holstering in a leather or Kydex holster I also want the cigar ring and spacer.

Tac Gunner
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I agree with your thoughts. I too prefer a tail cap switch for the same reasons but would be just fine if the mode switching was done with the tail cap as well although I do understand the reason for the side switch. As for the GITD look at rtdelextronics.com, they have GITD rings. I do like the looks of the L6. Hopefully someone with manufacturing abilities will show up.

texas shooter
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Tac Gunner wrote:
I agree with your thoughts. I too prefer a tail cap switch for the same reasons but would be just fine if the mode switching was done with the tail cap as well although I do understand the reason for the side switch.

If you delete the side switch you also lose some of the tail switches functions such as a rapid press or just a few quick taps. I use rapid tapping to signal, like another squad car on the other side of a large parking lot. Also great to signal EMS when you’ve moved away from your car. This would put you in mode selection or hidden mode. Then it’s back through mode selection to go back to where you want it. This would also happen if you got a poor press by accident just trying to turn it on, then it’s back scrolling through mode selection. I want two separate switches for two different functions. I do like the idea of GITD rings and even switch covers. It’s quite handy knowing where you put it. My bedroom is pitch black at night. All I can see is the clock’s LED face and a few glowing tail caps of lights on the book self.

Tac Gunner
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I understand this and do realize you are looking for a tactical light with specific features. I on the other hand am looking for a general use light where a tail cap only switch works just fine. I guess really two separate light builds would be the best in order to meet what we are looking for. I would be ok though with your idea and it would still be useful to me, just not my ideal setup. Either way I hope this moves forward.

As far as the GITD we could possibly get a tritium vial inside the optics, GITD paste under the optics, or maybe a lighted tail switch like piltodog68 came up with.

Tac Gunner
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So I have found the Convoy BD06. I really like the looks of the light and I think with a few tweaks could meet what we are looking for. I really like it’s styling and besides the tail switch, it already has the biggest portion of what we are looking for.

pinkpanda3310
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Sounds interesting to me. Sub’d

  

texas shooter
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Tac Gunner wrote:
So I have found the Convoy BD06. I really like the looks of the light and I think with a few tweaks could meet what we are looking for. I really like it’s styling and besides the tail switch, it already has the biggest portion of what we are looking for.

Yes it does. It’s the size and shape I had in mind. I do want a strictly on/off tail switch still along with a quad XP-G3 led set up. BD06 has the charging ability to keep most people happy to not have to buy an additional piece of equipment/charger. It’s tube is 32.8mm and the Convoy L2/L6 being 35mm but having the desired nearly flush fitting tail cap for easy holstering.

A 40-45mm head, 140-150mm total length, 35mm body, e-switch that doubles as a charging port. A quad XP-G3 S5 on copper with a tight throw TIR optic. Modes set by e switch only;moonlight, low, medium, 3-4 amp high and 8 amp turbo. UI to allow long press for strobe. I dislike quick mode scrolling to cause accidental strobe. The electronics then needs potting or epoxy. Water proofed as much as possible, I’ve worked some really wet shifts where nothing on me was close to dry. The bezel needs some height to better protect the optics and be stainless steel. It still should have the detachable tactical ring and thread protector. It needs some mass like with a thick walled head and heavy body tube to give confidence that this light is the one light you grab when it gets bad. That mass will also help handle turbo’s heat. I have a lot of lights that are toys and only a few that I would consider as tools. I may have to send some emails.

Tac Gunner
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I like the sound of this. Add a tail switch, a tactical ring like the L2 and L6, and bump up the head diameter (although I’ve decided I would rather a smaller 35mm head and run a triple instead of quad set up that way it’s more pocket friendly), and then it should be good. I completely agree about potting the electronics and the waterproofing as well as the thick body. I would also like to see options on the optics as I prefer flood with a little throw. Now I just wonder who we need to talk to about making this?

WolfA
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What about Supfire L5 as a host?

Supfire L5

"A black bulb which, when switched on, turns the room dark"
(Gyro Gearloose)

pinkpanda3310
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WolfA wrote:
What about Supfire L5 as a host?

Supfire L5


That was my first thought but I was hoping this would take a different direction, like as in smaller head. I like compactness lately. The other light that sprang to mind is the DQG 26650.

  

Tac Gunner
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I like the looks of the new Supfire and will keep it in mind for a personal build. The DQG is similar to what I’m thinking of as well. At first I wanted a 40mm head but after thinking about it more, a smaller head would be practical for me because then I would actually carry the light. The Shadow JM20 and JM07 are also other options. The JM20 is more along the compact pocket size and the JM07 is more along the duty size. I would still buy whichever ends up happening but preference is towards a more compact light.

JM20
http://www.cnqualitygoods.com/goods.php?id=1988

JM07
http://www.cnqualitygoods.com/goods.php?id=1690

When I first saw this thread I didn’t think there were many single 26650 lights on the market but the more I look the more I find.

Edit: As I said I keep finding more,

Palight triple XML2. A little bigger than speed and no side switch
http://www.cnqualitygoods.com/goods.php?id=1874

mattlward
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Gotta say once again as the owner of 5 26650 tube lights, the Shadow JM20 is really worth a look. It has an integrated shelf for heat dissipation, on/off tail switch and an electronic side switch. I do not like the system for mounting the tail switch, it is just not pretty or elegant but it works. The switch is soldered on the side of the driver board, but it is only 1 board, not one of the T boards. I need to see if one of our driver gurus could make a board for the light that would fit and is a FET + 1, 2 or 3.

EDC rotation:
FW1A, LH351D 4000k (second favorite)
FW3A, LH351D 3500k
FW3A, SST20 FD2 4000k
FW3A, Nichia 4000k sw40 r9080 (favorite light!)
FW3A, Cree XP-L Hi 5A3
Emisar D4V2, SST20 4000k

Tac Gunner
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I like the looks of the JM20 unless Simon would design us a Convoy. I would be fine if the side switch hole was plugged and it was just a tail switch

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