Yes. That is correct. However you don’t have to screw all the way out for a big flood. One-third to one-half is plenty. Could probably wrap the tube threads below this for some contact to bottom of head below head threads. It will make it harder to turn depending on how tight.
Thanks Mark. Really appreciate all the good info. Doesn't sound too bad if the threads are kept well lubed.
If I ever get this light, I will probably use it like DavidEF suggests. It's nice to have the option available to unzoom and also to be able fine tune the focus to the situation as needed.
Thanks for the photos Mr. mholdenattorney.
I am no driver expert, but I guess it is the R120 sense resistor that we can play around with?
I didn’t go through ohaya’s thread (it’s long!) so I don’t know about this driver. Perhaps ohaya and the other driver experts can chime in here.
Thanks again for all your efforts Mr. mholdenattorney, pretty good information there. I am almost 90% sure that I will order this light. It’s just a matter of time and buying from who - did somebody mention about groupbuy? 
after reading all the info here i think we can safely answer to the the question of the thread starter: yes its a worthy zoom flashlight and IMHO one of the best around.
its relatively cheap ,
it have good thermal management
it have an big and nice glass lens
and what it is more important in a zoomie i think this will out throw everything in its price range reflector or even aspheric type of lights.
I read the Ohaya driver thread for this driver and a few of the links therein.
It does not appear this is a very efficient driver and will not push 4 –5 amps.
Can any one recommend a better driver or links to information.
I am new at this.
Thanks
^ Great question. I'm all ears on that as well. I know of no good buck candidates in that small of a driver. I think BLF Member wight is developing something, but I haven't had a chance to catch up on that project. I think it's still fairly early in development.
Separately, I just heard that a GB may be in the works. I told him that he is evil, but I also said I can't wait to hear the details in the next sentence. What's the matter with me?
Don’t you play with my emotions on the GB
hey guys!
two things:
if you have a android phone use “Cozy Magnifier” to make pix from drivers and other details
best app I found…
second :
I try to get gearbest to stock that light.
maybe we get a good price also 
You are just fine. But you misspelled "in _the_ works" :D
Too late. ;)
Should arrive there "sooner than you expect".
Just had to drop $400 on new leaf springs for my truck, and need to drop about another $1000 on it.... So I hope it's a great group buy because I ain't got play money right now
Oh. It’s not the same sized lens? That’s a deal breaker then. Maybe I’ll finally get into 26650 lights.
I have just finished reading ohaya’s thread. Yes it is quite disappointing that this driver might not be able to be resistor-modded and deliver high output current. The other components like the diode and the FET may not like it. 
3 possible scenarios we could have here:
- Maybe we should hope that the manufacturer of this Uniquefire 1405 would use better components on the driver. ohaya’s driver has R200 resistor, whereas your driver has R120. Hopefully the other components are different (in a good way) too.
2. Finding another 16.5mm buck driver, but this is not easy at the moment. Most of the better buck drivers are usually large in size.
3. Forget all these buck drivers and go with the BLF17DD driver or 7135 based linear drivers - i.e. Nanjg 105C type of drivers. This way we cannot use 2 x 18650 anymore. A dummy cell can be used together with a real 18650 in this format. The downside of this is we do not have constant-current regulation anymore, which is the beauty of buck drivers. But the bright side is we are quite familiar with Nanjg drivers thus we can easily boost the output current, having more flexible mode selections and also flashing your own firmware.
What is the output of my driver with the R120 resistor with two 26650’s?
What resister would I piggy back to add .5 amp more?
Are there any 7135 based linear drivers that accept 8 volt input?
Thanks
I am afraid you won’t see 7135 based drivers working with more than 1 18650. That is the way they are conceived to work. If you increase input voltage you will suffer from reliability issues to very poor performance. You can find ways to overcome this, using an buck part inside the driver but this is not economical, increase complexity and need more space.
I am making some experiments trying to use amc together with a cccv driver to have as much controll and a smooth output as possible just for funn. Normally it should work with 1,2,3 or 4 batteries in series and have a very wide current range from 0.38 A to 8A.
Downside? Is expensive around 30 $ and very big. Aso will need to find out total performance of the system, maybe 30% are loses… for this i am not sure. but it can be fine tuned.
Hi mholdenattorney, there is no way I can guess the current draw of the flashlight by knowing the resistor value alone, unless I have one in my hand and measure it with DMM. There are just too many factors playing in it. I am not sure if ohaya has figured out a way to boost the current draw with this driver, from his last post it doesn’t seem optimistic though.
I know people around here has figured that changing the zener diode can increase the Vin of the 7135 driver, hence the Nanjg driver can accept two 18650s, it is an idea of using different value of zener to lower the Vin down into the voltage where the MCU can handle, but AFAIK they only use this with MT-G2 because Vin = 8.4V and Vout = 6V, the voltage difference is not too much there. However if using the zener-modded 7135 driver with XM-L2 the Vout is only 3.4V or so… the difference between the Vin and Vout is up to 5V! So that could be an issue there since 7135 (Nanjg) drivers are not buck-driver but linear-driver, they can’t buck the Vin down into Vout but they can only kinda “burn off” the excess voltage. This way even if it does work I highly doubt the efficiency of this setup will go more than 50%!
There is a thread about this setup and you can read it here.
Cheers. 
Thanks everybody about the driver info
Hi,
Did you see the pic in this post in that other thread?
If I recall, that was with a R100 stacked on top of the original R200, and with the replaced schottky diode (but hadn’t replaced the FETs), so 4.45 amps at the emitter with 4.7V Vin and 4.5 amps Iin.
Hopeless buck driver it is. I am gonna buy this and run it with 17mm Nanjg driver then.
Now where can I buy a dummy 18650? Or a spacer like that?
Looks like it might not be too hard to cut off the driver tower and bore out the driver cavity enough to press in a larger diameter peice of copper or aluminum tube/pipe.
I want to put an MT-G2 in one of these. What do you think the chances are of getting a 20mm star in there? Is there enough material in the pill to open the hole up?