Ultrafire F13 at $11.39 - with Coupon Code - Gearbest

[antiparanoico]

@The Shrike

Can this run on 3xAA also? If so, how? Would I need a case like this:
http://www.gearbest.com/diy-parts-and-tools/pp_89760.html

Nope.

[wight]

@Lancman

Nice deal, sorely tempted but are 22mm drivers readily available? Had a quick look and couldn’t seem to find any.

There are at least two 22mm designs freely available on BLF for you to assemble yourself:

• WarHawk-AVG expanded Mattaus’s BLF20DD to 22mm here: WarHawk-AVG - BLF 22DD discussion thread
• I produced a 16*7135 driver in 22mm specifically intended for this light over. Sorry that the thread is badly organized, but it’s only 3 pages: 22mm 16x 7135 driver for F13 flashlights - [released]

Your other option is to use a smaller 17mm or 20mm driver. You can either use a contact PCB (like these 21mm ones from IOS?) as bibihang suggested or you can just strip the stock driver and use that in lieu of a contact board. IIRC there is enough space for any 17mm driver you want.

[pilotdog68]

@bibihang

@pilotdog68

I ordered one of these as well.

If this doesn’t fit that AA battery holder, does anybody know of a light that will fit it?

XinTD/Convoy X3

I was really hoping for a more budget option, to give as gifts

[antiparanoico]

@pilotdog68

@bibihang

@pilotdog68

I ordered one of these as well.

If this doesn’t fit that AA battery holder, does anybody know of a light that will fit it?

XinTD/Convoy X3

I was really hoping for a more budget option, to give as gifts

One that I know is the SH-3AA (Aurora/Ultrafire)

you must remove the spring

[Old-Lumens]

Some links for more info on the stock driver or mods.

https://budgetlightforum.com/t/-/26433

https://budgetlightforum.com/t/-/23188

https://budgetlightforum.com/t/-/19164

and the tear down video

UF F13

[Lancman]

Thanks for all the great information guys.
I had wondered what those contact boards were used for. My soldering skills are not up to making my own driver, but that contact board idea looks doable. Thanks.
I think I’m about to acquire my first 26650 light.

[bibihang]

I just tried to move the positive wire to the OUT1+ pad and I got 3.0A measured at tail. All the wires were also replaced with 22awg one.

Still doesn’t give any ‘rocking’ performance, but surprisingly the PWM pattern of this stock driver can hardly be noticed so I will just stick to it.

[BILL_G]

27.2 mm ID

[salim]

Hard to resist…ordered thank you OL

[Tom_E]

I loaded up on them for $10, but for $9, may have to buy a couple more . These fit the 40mm NiteCore filters well (at fasttech) or this cheap one: fasttech-diffuser, as other common 40mm lights, such as the SupFire L5, SolarStorm/FandyFire K2.

[antiparanoico]

@Tom E

I loaded up on them for $10, but for $9, may have to buy a couple more . These fit the 40mm NiteCore filters well (at fasttech) or this cheap one: fasttech-diffuser, as other common 40mm lights, such as the SupFire L5, SolarStorm/FandyFire K2.

Also fit the Olight M22 filters http://www.fasttech.com/p/1311103

[cnrffl1]

I am thinking of building a triple led flashlight. Is this a good host for it? Any build example?

[wight]

@cnrffl1

I am thinking of building a triple led flashlight. Is this a good host for it? Any build example?

Seems like a decent plan! You’re thinking of installing a 35mm triple? You’ll need a spacer of course. The stock flashlight uses a glass 37mm lens, so you may be forced to butt the triple optic up against the glass lens so it doesn’t fall out. I’ve been thinking about trying a triple with one of these myself. I can’t think of any build threads for F13 triples, but it should be similar to DBCstm’s Eagle Eye X6 triple builds.

Note that these should be the latest version of the F13 (same as the previous group buy on the same units from GearBest), they do not have a separate pill. I don’t necessarily agree with freeme’s conclusions, but the pics and information are all accurate and worth your time: freeme - UltraFire F13 mod issue ~ mini review included

EDIT: I have just measured the lens opening on an Ultrafire F13 from the previous Gear Best group buy. I got 33.8mm; IMO that should be plenty to keep the 35mm optic from falling out without leaving the glass in place.

[Racer]

Got mine when it was $9.99 a few months ago— great flashlight.

[bdiddle]

I ordered 2 more. With a little work it should be able to mount the Cute triple XML optic that everyone is using for the EE X6.

I am considering it, since a 26650 would be nice for a triple……anybody considering this?

[pilotdog68]

@bdiddle

I ordered 2 more. With a little work it should be able to mount the Cute triple XML optic that everyone is using for the EE X6.

I am considering it, since a 26650 would be nice for a triple……anybody considering this?

I would consider it if someone offered the correct spacer for sale. I have no way to fabricate my own

[WarHawk-AVG]

@can

I like big pictures and clear instructions. I modded my light from these 2 posts from smart blf members.
I wired springs, larger emitter wire, connected at new + terminal and made a stinkpad.
Total cost for wire and solder? Maybe a few cents.
Light is very good now. Fun project.

Group Buy for the GearBest Ultrafire F13 - Closed? see post #22

Copper MCPCB Mods see post #19

Awesome, great job! Gotta love the ingenuity of making a stinkpad, if for just making it a DTP (direct thermal path) star vs one with the pcb substrate under the emitter thermal slug

Forum tip: highlight the post #, right click, copy link location, post that link location and it will take you directly to the post in question

[ImA4Wheelr]

pilotdog68 wrote:

I ordered one of these as well.

If this doesn’t fit that AA battery holder, does anybody know of a light that will fit it?

It think most 26650 lights take 4AAA holders. I usually solder a piece of copper tubing with a little disk to the holder or to the driver to make up the vertical difference. Much less capacity, but at least you get the voltage up a bit for better performance.

[garrybunk]

Yes, this light will run 4xAAA with much better output than 3xAAA. See my review of the original F13.

-Garry

[cnrffl1]

@wight

@cnrffl1

I am thinking of building a triple led flashlight. Is this a good host for it? Any build example?

Seems like a decent plan! You’re thinking of installing a 35mm triple? You’ll need a spacer of course. The stock flashlight uses a glass 37mm lens, so you may be forced to butt the triple optic up against the glass lens so it doesn’t fall out. I’ve been thinking about trying a triple with one of these myself. I can’t think of any build threads for F13 triples, but it should be similar to DBCstm’s Eagle Eye X6 triple builds.

Note that these should be the latest version of the F13 (same as the previous group buy on the same units from GearBest), they do not have a separate pill. I don’t necessarily agree with freeme’s conclusions, but the pics and information are all accurate and worth your time: freeme - UltraFire F13 mod issue ~ mini review included

EDIT: I have just measured the lens opening on an Ultrafire F13 from the previous Gear Best group buy. I got 33.8mm; IMO that should be plenty to keep the 35mm optic from falling out without leaving the glass in place.

Thanks for your input. Yes, I will follow DBCstm’s Eagle Eye X6 triple build (35mm optic, 3 XP-Ls, and 32mm noctigon). I will order one of your FET driver boards from OSH Park (maybe 17mm FET+7135 driver, so I can use it for other lights) and figure out how to make a spacer.