Review TrustFire TR-3T6 Triple XM-L T6 5-Modes Memory LED Flashlight (3x18650)

None of them! Aspheric lenses are designed to focus a single, centered beam. With a triple LED light such as this none of the three beams will be focused and you would severely screw up the output and only make it worse.

The only way would be to use a single aspheric lens for each LED and figure out how to mount all three in the head at the proper focus distance. Even if a single lens like the ones linked could work the focal length would be all wrong as the reflectors on this light are too shallow.

thankx JohnnyMac it was helpful,saved me from purchasing the optics

You are welcome. I’d hate to see you waste your time & money and get excited for nothing. :wink:

Can't say for sure for this light, but I've seen 10-15% using the cheap KD voted lenses for P60 lights. If they have one in your size it'll be hugely cheaper than the UCL ones.

Actually I've seen way more than 15% but that was comparing a dirty glass lens of some age with a brand new coated one. I'd reckon you can expect the difference between one Cree bin and the next - 7-10%.

Whether that is worth it to you is another matter.

Has anybody tried this with 4xCR123A? The voltage shouldn't be too high once you get some load on the batteries (but don't blame me if it the driver burns)... CR123As would provide a nice backup and be always usable even if you take the flashlight out of the glovebox after two years of no use and in -30C temperature. And you would have a wall of light available to scare away the wolves ;)

Can anyone tell the size of the diameter of single refector in TR3T6.

sorry i have not tryed mine on 4 x CR123A,s so i cant answer that one, but i know it will run on AA,s lol

i measured the reflector,s in my TR-3T6 that i brought from manafont

depth 17.30 mm 0.681 inch or 681 thou

width 22.50 mm 0.885 inch 885 thou

hope that helps

Thankx Benkie for measuring,

Previously I wanted to fit a single aspheric optics but I was wrong as correctly explained by JohnnyMac now I am thinking that to fit 3 aspheric lens glued on a single 52mm normal lens for better throw mode,thatsy I required the measurement,I don't know what would happen with this Idea.

I am thinking of this,

Our local optician told me that he can make it with even AR coating,but he requires full specs,

Just wondering what full specs perquisites are required,perhaps one would be diameter,Focal Point but what else ?

No problem, my measurements might be out 0.2 mm but close. As for aspherical lens or lens’s I might not understand what you are doing but I feel it would take away what the torch is for.
With out any aspherical lens it will give out a white wall of light and put out good usable throw for a couple hundred meters (well to me any way).
One or more aspherical lens might kill the performance of the spill with not to much more throw it just might turn it into a fire starter lol.
The UCL lense upgrade might be the best bet and cheap I think I’ll do some measurements tomorow and post up the best matching UCL lens if you like as I’m going to buy a couple any way.

Benckie,

Let us know what options you come up with for the UCL Lens.

Forget it.

Xm-l needs at least 40-50mm aspheric lens.

i have measured the len's from my TR-1200 and TR-3T6 they both are 51.82 by 1.43mm aprox im looking at using this lens as a replacment

http://www.flashlightlens.com/str/index.php?app=ccp0&ns=prodshow&ref=mag_521_UCL

there is also a Light Diffusion Film you can have added if you like

http://www.flashlightlens.com/str/index.php?app=ccp0&ns=prodshow&ref=ucl_lens

i belive the 52.1 mm will not be a problem as there is a little side to side movement in lens with the trustfire host,s and i belive the 1.9mm will not be a problem in the TR-1200 at all but in the TR-3T6 you might have to screw down the alloy bezel spacer down a bit tighter.

i will buy one and try it in both lights and report my finds on fit, i dont have a light meter (will get one) so i go only go one how i feel for out put, but i feel it should be an improvement over the stock glass len's, i will give them a long run time test to see how they hold up.

I have a few of the UCL lens laying around from other various Maglight projects. I did a side by side eyeballing of the lens that's stock on the TR-3T6 and the UCL 52.1mm lens. They were so close in transmittance that I didn't bother replacing it (mostly because I couldn't figure out how to get the lens retaining ring out safely). If I had to guess, I'd say that the transmittance on the stock lens is probably around 95% (the UCL claims 99%).

Let me know if you get drastically different readings on the UCL lens and I'll swap mine out :)

Also, if you're looking for a GOOD/cheap lux meter, this is the one I use from DX...

http://www.dealextreme.com/p/lodestar-premium-digital-light-meter-20000-lux-7954

I don't use it to get "lux" numbers, I use it for a general comparison of all my lights. I mostly do ceiling bounce tests so the exact lux numbers don't matter, just how they compare to each other.

It’s easy to get the retaining ring off the TR-3T6 last time I used digital multi meter probes the stock lens is just glass.
Thanks for the heads up on the light meter I’ve been looking at that one and the on from manafont.

To Benkie,

Thanks benckie for giving info on UCL lense,plz give ur views for UCLp AR Acrylic Lens,they have light transmittance of 97%(as advertised), but I think they would deal better if accidentally dropped,what are ur opinion ?

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To Rezolution

Can u post the lux readings for Tr-3t6

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To viffer750,

Thankx for the info regarding aspheric lens,

Regarding "unique engrish language..."

As I am an Indian,My native language is not English,beside we have to learn 4 languages including English,so If I made a mistake then I am sorry

I wanted to tell you guys that the folks that have bought this light from this seller on ebay have been very pleased.

That's the same seller I bought my Ultrafire C8 XM-L T6 light from. He is very good.

http://www.ebay.com/sch/perotan/m.html?_nkw=3800+lumens&_sacat=0&_odkw=&_osacat=0&_trksid=p3911.c0.m270.l1313

And here's another option. Folks seem to like this light they have bought from this seller. He's the same guy that sells the Hi-Max 18650 2600MAH batteries that everyone is talking about.

http://www.ebay.com/itm/HI-MAX-3xCREE-XM-L-T6-LED-Flashlight-Torch-FULL-SET-/220815901089?pt=US_Flashlights&hash=item3369a741a1

http://www.ebay.com/itm/HI-MAX-3xCREE-XM-L-T6-LED-3000Lm-Flashlight-Torch-/220817770034?pt=US_Flashlights&hash=item3369c3c632

The first link is the better deal. I just showed the second one because he has it listed as 3000 lumens.

I was just "tracking" perotan/s auctions some days ago, I still have a bookmark to check everyday :D

My brother just won one TR 3xT6 from this seller at only USD41 inc.Shipping!!

http://www.ebay.com/sch/minglo2010-88/m.html?_trkparms=65%253A1%257C66%253A1%257C39%253A1&rt=nc&_ipg=200&_trksid=p3911.c0.m14.l1514

The first picture doesn't look like a genuine TrustFire, but pictures in description does. So, I'll wait and tell you then (may be in a month).