Good point on the lens. I just looked at the description on one and it is glass.
Now the waiting time for the snail mail.
I was thinking of picking up THIS host from Mountain and using a A6 driver and XPL-Hi in it. Any thoughts?
It looks like a good host. Ask Hondarider about his. See if the LED he put in it held up.
This is an interesting thread. I find it lacking a lot of useful information, namely for modders. The more information the better. Here's a list of features to start with:
Notes for the above image borrowed from Ross Optical: I'll call DIA1 Overall Diameter (OD) and DIA2 Effective Diameter (ED). For the remaining parameters my guess is CT center thickness, ET edge thickness, EFL effective focal lenght and BFL back focal lenght. Of course the last two parameters may be a secondary concern here.
- Lens information: total diameter, effective diameter, center thickness and edge thickness. Together with lens material this is paramount information to get a lens replacement.
- Pill information where applicable.
- Emitter board size, including thickness if not 1.6mm standard and centering ring details.
- Driver bay size and total depth.
- Battery tube and configuration details.
- Switch information.
I like regulated drivers a lot, albeit it seems most of the good and easy to access worldwide offerings are bigger than ∅17mm, which sucks yet not as much as lots of flashlights designs with plenty of available space being limited to ∅17mm driver bays. Like various UniqueFire series models, doesn't it?
Remember it is easy to install a smaller engine inside a big bay but not the other way around.
Question for readers: What big headed UniqueFire type torches feature ∅20+mm driver bay? Please include bay depth.
Torch data.
UltraFire SK98.-
Lens: OD 26mm, ED 20.5mm, CT 8.1mm, ET 1.8mm. Lens material: plastic. Held with rubber grommet, maybe glued in some rare cases. Sourced with cheap Aneng digital caliper.
Emitter board ∅20mm, using expendable ∅9mm centering ring below aluminium retaining screw in disc with cheap anodization. To ensure short circuit chance prevention I usually fine grit polish the bottom surface of the emitter board screw in retaining disc, and isolate the board's wire solderings with bits of glue under dabs of electrical tape.
Pill: aluminium, semi :facepalm: hollow, ∅≈11.1mm gap, 2mm shelf thickness.
Driver bay: ∅20mm, total depth 8mm (to be confirmed). No driver retaining ring nor place for it, driver is pressed into the hole.
Battery tube: for industry standard 18650s. Very little lenght to expend in tighter springs or longer than flat top cells.
Switch information: ∅17mm pogo stick assembly using stock turd quality switch. These sort of switches at KD are proper replacements, ordered them and received Yongt branded units. My measurements of 'em are a tiny bit smaller.
Some other zoomies' information coming later.
Cheers ^:)
Mon, 10/29/2018 - 02:26
Ooh, first AAA zoomie I recall seeing:
Fixed that link, Hank: https://www.aliexpress.com/item/Portable-Mini-Penlight-CREE-Q5-2000LM-LED-Flashlight-Torch-Pocket-Light-Waterproof-Lantern-AAA-Battery-Powerful/32792158827.html
Only AAA battery support listed. Chinese knock-off angry blue emitter. To be run with Ni-MHs or ruinalkaleaks.
Handful of user pictures:
♬♩ ¡Riiiings! ♪♫
Cheers ^:)
Simple answer: “None”. They are all made for 17mm driver and 16mm mcpcb.
But you are not getting anything with 20mm driver and larger mcpcb imho so why bother?
Banggood have just refunded me for my order of 10 Cometas (that were in stock when I ordered them), they have sent me $117 instead of £117 so I’m pretty upset.
One of my Z1 mods Mtn MAX 4S 3amp buck driver 4x26500 XHP-35HI it was one of my favorites…for a Zoomie…
I just ordered 6 different zoomies. 3 18650 lights and 3 26650 lights. Also ordered led’s and drivers for most of them and led’s and drivers for 4 of my other lights. I plan to swap the led and driver in all of them.
It’s like I caught the flashlight bug all over again. The Zoomie bug at that, Zoomie light is just so even and clean.
The flood in my KF8 is the only normal light that gets close to the nice Zoomie light.
I just picked up I Zoom Farpoint 350 zoomie with COB. The exact same as revised version of Tactight. For $8.50 and last one I took chance. We will see how it works ot.
I’d really like to have a nice 10440 zoomie. This one appears to be too cheap though. I searched Ali for others, found 0 10440 ones. OK, AAA? There are a few.
This appears to have somewhat better beam, but without focusing fully:
https://www.aliexpress.com/item/1-Model-2000LM-Mini-portable-Small-penholder-Led-Flashlight-Night-Walking-lighting-Car-Maintenance-work-Torch/32846141477.html
I still have a feeling it’s way too cheap though…
I have the richfire SF-390 & sf-360 they are very good !
clear glass .
my sf-390 with amber led works fine &the sf-360 with dedomed red led
https://www.gearbest.com/led-flashlights/pp_177260.html
Who know better single zoom (18650 battery) let me know.
This one looks very promising to me.
It’s a 26650 but slim body and head. Not bad on price for a host. I would remove the orange color though. I like it.
^ Hmm… The lens is really small in diameter on that one.
You see that quite ofen in cheap zoomies.
As if there aren’t any larger lenses out there.
That fake Led Lenser a few pages back is quite well built.
At least, the one i got some time ago. Mine has no brand on it though.
There are a few others out there.
I have 4 different 1x AAA zoomies.
This SkyWolfEye is the slimmest i have.
I modded it with a dedomed XP-C $1.78 AAA zoomie XP-C dedomed
There was a later model from SkyWolfEye some time ago, a bit wider head and matte black finish.
Seems it was only available for a short while.
Has a slightly better lens too.
But they’re all quite crappy really… 
With regards to the UniqueFire series but not limited to I could also say “as if there aren't any larger drivers out there”.
17mm is too small to embrace the majority of fully regulated buck/boost stuff. Lots of lads still are stick in the mud with their same old unregulated MOSFET PWM 7135 story. But lads ought to understand their feet will continue in the mud unless they decide to endorse further development of proper drivers. This is about fostering what we want instead of letting others deciding for ourselves. 
Back to my cave. ^:)
Barkuti,
FET DD is not bad choice for some users. You would not believe me but they can withstand some serious abuse plus they are simple to build… Other than that you also have linear 7135/7138 17mm drivers that could fit and not only that I had 17mm buck drivers at 2007 so did they disappeared from market?
Ok you eventually got 17mm buck driver and now you have problem of fitting it cause pill inner driver space is to shallow? Or in other words you think pill is not deep enough?
Solution is very easy. Just extend depth of such pill by adding those 17mm brass driver holders(you can stack them to desired depth).
We have choice these days :+1:
Nice find. But nothing revolutionary here. Ultimate thrower in zoomie world is Brinyte B158 with 2$ worth plastic lenses!
Never I complained of driver unreliability, but a MOSFET DD driver is like no driver. There's nothing inside of it which takes care of matching its output to the characteristics of its (led) load. Because of this the chain of electrical components inside the flashlight needs to be attuned to prevent undesirable results.
The 7135 linear regulators are not meant to be fast PWMed and have a fixed current output of 350mA per chip. No good.
Why is the above still prevailing? Availability, cheapness and probably because people knows no better.
There's some good linear drivers using MOSFETs in regulated linear mode, like led4power's offerings and the aforesaid LD-25.
Among the available buck and boost offerings lots of them are turds with undesirable characteristics like too much sense voltage (bad current sense designs) or lack of some desirable feature like undervoltage warnings.
The majority of desirable buck/boost drivers which I know of are ∅20+mm.
One thing I like a lot from a fully regulated flashlight setup is it always goes full throttle when I want it, and independently of battery state of charge.
Just some. If I am to compare the main flashlight driver technology you're using versus some of the software you're making use with them it's sort of like running MacOS 10.1w/Windows 10.w on Motorola 68020/Intel 80386 powered systems. You get the idea.
Cheers :-)