Do you find protected cells to be too long for this light? I have some protected button tops and if i screw the tailcap all the way the light flickers on and off. If i loosen the tailcap the flickering stops.
Anyone try the IMREN IMR16340 cells? I bought two here: https://www.imrbatteries.com/imren-imr-16340-700mah-10a-3-7v-rechargeable-flat-top-battery/, and am very impressed! They seemed to out perform my EFEST 700 V1 flat tops in tests on both my modded U-F10 and another 16340 FET driver based modded light.
I just ordered 4 more of them. I threw out a bunch of my older EFEST 550's because they don't hold a full charge any more.
I use them Tom E and yes was very satisfied. I mostly use the efest red 700 v2s. The IMREN were bought on a sell out…but I would buy more for sure!
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I know it’s an old/dead thread but I never ended up buying one of these back then, however I just ordered one from Gearbest for $5.99 with the code from bilakos10. I’m wondering if anyone here has got one of these recently?
Looks like everyone in this thread back in 2016 got one with 2 modes. I wanted that UI and thought that’s what I’d get but I guess not. 
I don’t think anyone mentioned if it had SOS with a long press, maybe no one tried that?
On the ultrafire.com site it shows the modes as: “Hi , Low , Long Press is SOS” (link below)
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Here’s everything I’ve found researching about this light now:
The current one being sent by Gearbest has more modes, (3 or 4?)
In the Gearbest listing under specifications it shows: “Mode: 3(Turbo;High;Low)” But written in the description is: ” flashlight is capable of bursting out 889Lm maximum output. With two brightness levels and zooming function”
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Here’s some comments from the Gearbest reviews (seems a mixed bag):
- From Mac Hooke on 2/20/17:
“Awful modes!!! Stop using strobe modes that you cannot avoid! We hate strobes! Why do you keep putting them in lights?!?”
- From Johnny_Boy on 11/13/17:
“The lights mode are 3 (100% / 50% / 25%) For SOS you must press the switch for 3 seconds”
- From Steve on 1/4/18:
“3 modes. High/Low/SoS”
The one from Johnny_Boy in November actually sounds great: (H-M-L and hidden strobe)
But the latest one from Steve last month sounds horrible (H-L-SOS)
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UF-9?
I see now there is an UltraFire UF-9 on fasttech ($7.27 after BLF code):
https://www.fasttech.com/products/0/10015804/7113300-ultrafire-u-f9-led-flashlight-w-focus-zoom
Fasttech also carried the UF-10 but it’s now showing “Discontinued” on their site:
https://www.fasttech.com/products/0/10015804/6006700-ultrafire-u-f10-mini-led-flashlight-w-focus-zoom
On the ultrafire.com website there is no UF9, only UF10:
Flashlight, Batteries, Tactical Gears - UltraFire Official Store
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Fasttech also has an unbranded clone ($6.13 after BLF code) https://www.fasttech.com/products/9625593
- Specs (fasttech) show 4 modes for the UF9 and the clone.
- Specs show UF9 and the clone 11-12g lighter than original UF-10
- Tint may be warmer on the clone:
- All 3 specs below are from Fasttech:
Clone:
“Pure White”
Color Temp Range 5000-6500K
Light Source Color 6000K
Lumens (Max) 800 LM
Product Weight 65 g
Modes: Hi > Lo > Strobe > SOS
UF9
Color Temp Range 5000-6500K
Light Source Color 6000-6500K
Lumens (Max) 689 LM
Product Weight 64 g
Modes: Hi > Lo > Strobe > SOS
UF10
Color Temp Range 6500K +
Light Source Color 7000-7500K
Lumens (Max) 1000 LM
Product Weight 76 g
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UF10 Specs from the ultrafire.com website:
- 3 Modes: Hi , Low , Long Press is SOS
- Bulb: CREE XM-L2 T6
- Max output: 550 lumens
- Net Weight (g): 74g
I wonder if the strobe/SOS is “hidden” (3s long press) on the UF-9 and the clone, as Johnny_Boy mentioned in his Gearbest review.
Also wondering why it’s lighter now, did they change the pill from brass to alum.? Change the driver? Does it still have lighted tail?
Was planning an emitter swap and this simple driver mod as posted by djozz:
“with the light completely stock I just simply completely bypassed the middle 1R5 resistor with a solder blob, output (measured with a Efest IMR 16340, after 10 seconds) went from 330lm to 670lm.”
I was hoping for the same driver as 2016 but who knows what it has now. If I like it I might end up getting the other 2 (UF9 and clone) from FT.
I know, I know its a lot of words and thought for a 6 buck light. Just thought I’d share what I’ve found on the current offerings and see if anyone knows about them.
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Besides the clone at fasttech there’s tons of clones on aliexpress:
Here’s just a few:
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Lowest price ($4.40) 4-mode: High,Low,Flash,Long press switch active SOS
https://www.aliexpress.com/item/Muilti-purpose-flashlights-LED-Magnetic
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XM-L2 ($8.80) 2-mode “Mode Arrangement: High>Low”
https://www.aliexpress.com/item/2000-Lm-CREE-XM-L-L2-MINI-Zoomable
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XM-L2 ($10.75) 4-mode: High/Low/Strobe/Long press 2 seconds SOS:
https://www.aliexpress.com/item/CREE-XM-L2-mini-powerful-led-flashlight-torch
Beam0. I just stumbled upon this thread and light as well. I made a “frankenzoomie” today Thread Here. I was unknowingly trying to create pretty much a UF10. Apparently we are both late to the game.
I’d really like to make this thing into a hot rod with usable modes.
Check out CRX’s updated UF-10 thread here: ” UltraFire UF-10 TurboCharged”:UltraFire UF-10 - Osram KW CSLNM1.TG - 16500 - Lighted Switch
I’m getting a parts list together to do exactly what he did.
It is still a great budget light, worth spending many words on 
And the lowest $4.40 one from Aliexpress looks fine to me.
The only thing that keeps bugging me that it is a 16340 light, for the size it should house a 18350 cell. that has twice the capacity nowadays.
That’s pretty cool! Giving me ideas now! :smiling_imp:
yeah, like Yourrid said in his frankenzoomie thread, I haven’t noticed any 18350 zoomies. Even 18500 would be nice.
There’s a U’King clone of this, showing to be the 2-mode version like the original.
U King ZQ-CJT09
When you guys bypassed the 1R5 resistor with a solder blob, which one did you bypass? Looking at Tom E’s picture, it looks like there are two.
Had the body professionally bored for 18350, replaced the driver by lexel 15mm/Bistro, swapped the star/led for Virence mcpcb with 3000K E21a and raised the star by placing a penny underneath so that the wide beam is as wide as possible.
This is now my new EDC light.
Other than that I have the Emissar 219C and a mule with 3x Optisolii, but those are carries in my bag for special occasions only.
Wow nice!! I’m surprised, I did some measuring and it appeared the tube would be too thin near the top, how thin is that area after boring? Did you retain the e-switch in the tail or relocate the driver? Could you post some photos of your mods?
Nice wee lights when they’re done up.
There is enough meat in the non-threaded part of the body and enough length in this part to contain a 18350 (see the pics). So this was bored leaving a shallow lip just before the thread.
https://i.imgur.com/jgxAyuO.jpg
https://i.imgur.com/wMMyCz2.jpg
The lexel driver sits in the pill (see the first pic above). As for the tail, I removed the driver and installed a mcclicky, the retaining ring fixed it just fine. What I like in this tail is that it is very short and the boot still sits flush.
https://i.imgur.com/bx65nE3.jpg
https://i.imgur.com/L8giRs4.jpg
The only thing I’d improve in this light is the clip
I narrowly escaped killing the e21a in turbo mode, so this light now maxes at 1.4A( 4x 7135), but I have another body and a 219C @5000K waiting. With a 10A 18350 it should be a real rocket.
Also what I really like in this particular zoomie is the lack of any significant stray light. No rings. I got also the On the road i3, which is much slimmier and mechanically even better light, but the rings are awful.
ma tumba, real nice work, thanks for the photos! Great it can be bored out!
Where to get the McClicky? Was any modification needed for the switch to fit?
I guess we can fitted a regular clicky too, I think somebody has done it, I’ll have to look through the threads.
I am playing with the firmware. Bistro is definitely for a reverse switch rayher than for a forward one, like a mcclicky. I will borrow reverse guts from some of generic tail caps, but those female thread tailcaps can be used here just fine. They fit but just less fancy.
Not the right place perhaps, but I am very disappointed by bistro. Too bad dr jones lucidrvft for nanjig is not available anymore
I’d like to duplicate your mod, but it would be great to be able to retain the e-switch, it’s what I like best about this light. But for that I’d need to somehow fit a driver within the tail.
At first I wasn’t too keen on Bistro, now I’m a little more used to it. What I do really like is the quick access to turbo from the first mode. (long half press) I keep memory turned off. Not sure how that would work with a forward switch. I really only like forward switches in the tail of a dual switch light.
I don’t have any experience with Biscotti, not sure if it has the quick turbo access. I’ve been considering trying the Crescendo ramping UI for clicky.
Would a regular switch install in this light?