MT-G2 Thrunite T10T Ti "Micro Sunbeam"

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ghos
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MT-G2 Thrunite T10T Ti "Micro Sunbeam"

Hi all,

Its been some time since I’ve posted here, this is one of my latest builds in super small super bright flashlights (Smaller, brighter, better :bigsmile: )

My favourite LED emitter by far has been the 4000K MT-G2, its uniform circular appearance, nice tint and of course whopping lumens makes it an ideal light for flooding a room with flight

So I thought of making an even smaller light, just to see how small an MT-G2 light can be, I also wanted something exotic and well maintable, I’ve recently taken a liking for titanium lights, since it maintains its appearance well (it can be sanded and polished) and it just looks nice (Titanium :bigsmile: )

After some searching around, I found a nice light that I could potentially mod, the Thrunite T10T

This light has many good reviews everywhere, in sort, the one I got from the thrunite store is spec-ed as follows:

T10T Ti
- OP NW XP-G2 (I think 3c), 169 lumens with AA, 400-500 with 14500
- High, Medium, Moonlight (memory after 3 seconds)
- 1 × 1.5V AA Battery (0.9-3V range)
- Titanium (G4?), 93.5mm x 19mm, 37.4g
- Tailstand dual switch interface, reverse clicky / twisty

After playing with the light for a few days, began to start gathering parts around to mod the light, first thing to do was to find out how to open the light, I was prepared to inflict light scratches and scuffs on it, being titanium, it can be sanded and polished away, unlike anodized aluminum, which must be re-anodized

Taping both the head and the bezel with lots of painters tape, it was easily opened with 2 pilers grabbing on to them, I somehow still managed to scratch the head, but it was polished off, I didn’t see any red or green thread locker so it might just be a normal locking compound

Opening the head reveal a tiny (10mm?) led on a aluminum star, reflector removed (the LED pictured is NOT a XP-G2, but a Osram 4000k 92 cri reflowed for “testing” purposes :bigsmile: )

I wasn’t even sure if the MT-G2 could even fit into such a small space, so I sanded down the star until its essentially just the LED remaining, in the background is a comparison between a 16mm XHP-50 and a 18mm triple nichia 219a

Next up, sanding of a special reflector, the stock reflector cannot be used due to design and the wires will get pressed against the bottom, leaving a gap, for reference the reflector I used to make the MT-G2 reflector was taken from a Brass 18650 (its currently using a TIR optic, hence the spare reflector, its design allows it to be sanded down to fit and it will sit flush against the LED with space for the wires)

The next headache (and probably the most important of all) was to get a driver to run the whole thing, the space under the light was so small, I had to sand and remove 6 chips from a 105c QLITE driver and stack another 3 chips, one on an existing and another 2 via small wires for a grand total of 6 chips (2.2a), there is simply NO MORE SPACE for any additional chips

How was I able to power everything? Using 2 × 14250 battery, like these guys here, a 14250 battery is roughly half the size of a 14500, at 300mah each, about the same capacity as a 10440 battery

Last but not least, I didn’t really like reverse clicky switches, so I set out to find a way to convert the reverse clicky to a forward clicky. I managed to sand a normal forward clicky switch down to the same diameter as the original reverse clicky, attach a small wire from one of the metal plates inside to the bottom of the switch and soldered a small spring to it, put everything back together, it seems to work fine, however, due to either the design or my switch “retrofit”, there were gaps (button can’t click) and some shorting of batteries, due to the batteries touching the back of the light against the switch, pushing it backwards, after much experimentation, I put a piece of o-ring and a cut out paper with a hole for the spring at the back of the light, ensuring the battery does not touch the metal surface

And finally.. the completed light, the amount of light it produces for its size is unbelievable, it is even brighter then my triple osram, its a nearly full flood beam with a very large hotspot, which is perfect for lighting up the whole area, guestimate lumens would be about 800-1000-ish lumens on high (1500+ when 12mm 6v guppydrv FET driver comes in)

Stock clip has been replaced by a (mcgizmo?) ti clip

Light now joins the “sunbeam” family, a Download Pocket Rocket Ti (2 × 18350, 18×7135 guppydrv, 3000 lumen XHP-50) “Sunbeam” and a Sunwayman V10R Ti (1 × 16340, guppydrv 8×7135 Triple Osram 4000K 92cri) “Mini Sunbeam”

Thanks for reading!!

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

Edited by: ghos on 09/05/2015 - 13:11
djburkes
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You tease…where’s the beamshots, lol?

ReManG
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Now that is a beautiful build….

Bet it is surprising to those unfamiliar with your wizardry of lights…

ALL of my links are non-affiliated for your pleasure...

My Reviews

Lithium Ion Battery Safety 101

 

CRX
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I like it! I’ve been thinking of doing something similar. Are the 14250 cells good quality?

We want beamshots! Wink

DBSAR
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Never thought it was possible to squeeze the gargantuan MT-G2 in an AA-sized light Shocked

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

ghos
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Ok since everyone is asking, here is a beamshot, compared with my triple osram, both taken exactly the same distance I just realised, the T10T makes a VERY GOOD photography light due to its high flood

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

MRsDNF
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Simply WOW. Or should that be WOWSmile

 

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Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Gunga
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Wow! Awesome job! Can you also mention what optic fits R
The brass 18650?

ghos
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Oh forgot to put, the cells used are IMR 14250 300mah cells, pretty much the best you can use, you can get them from MTN Electronics

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

ghos
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The brass 18650 should take any standard 20mm TIR optic, I used mine from fasttech

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

Gunga
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Really? This is the tiny brass beauty? Does it for with lens? I think when I tried it was too short inside because the optic was too long.

ghos
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Emm.. I’m talking about this brass 18650..

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

Gunga
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Yep. I have that one. Does it fit the optic and stock lens? I think the optic was too long for me but am unsure.

ghos
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Yeah it fits, i’m not sure which one i used as the light is not with me now.. the battery is a little tight though

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

xxx
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Wow. really nice modding

Billy X
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Very impressive

Gunga
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How do you like the tint? I love how you managed to shoe horn a Qlite circuit in there. I’ll have to try that.

Thanks for indulging my off topic questions before!

Smile

jacktheclipper
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Sweet !

ghos
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It helped a lot that I could find images such as on this thread by rufusbduck http://budgetlightforum.com/node/31655?page=1#comment-589967

The image clearly showed where I could cut and not, and I realised I should have probably just gone with a 11mm FET driver.. much easier and more powerful

Gunga wrote:
How do you like the tint? I love how you managed to shoe horn a Qlite circuit in there. I’ll have to try that.

Thanks for indulging my off topic questions before!

Smile

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

Gunga
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Was it hard to get the old driver out? How big was the driver? Does it have a separate contact board? Do you have any pictures of that stage of the mod?

ghos
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Gunga wrote:
Was it hard to get the old driver out? How big was the driver? Does it have a separate contact board? Do you have any pictures of that stage of the mod?

The old driver is two stack with a contact board.. see pics.. , quite small, to get the driver out, I just poked a stainless steel tweezers from the top (after desoldering the star), with a medium press, it just popped out

Forgot to mention, I created a separate contact board by filing a partition board down to size and soldering the leads to the board

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

ghos
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ghos wrote:
Gunga wrote:
Was it hard to get the old driver out? How big was the driver? Does it have a separate contact board? Do you have any pictures of that stage of the mod?

The old driver is two stack with a contact board.. see pics.. , quite small, to get the driver out, I just poked a stainless steel tweezers from the top (after desoldering the star), with a medium press, it just popped out

Forgot to mention, I created a separate contact board by filing a partition board down to size and soldering the leads to the board

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

djozz
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twin towers wrote:
I can't see photos

I can't either, seems like they do not show on android devices..

ghos
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Ok, images re-uploaded on another server, my host changed the nameserver ip itself, hence the rest of the world has not propagated yet

djozz wrote:

twin towers wrote:
I can’t see photos

I can’t eigher, seems like they do not show on android devices..

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

djozz
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Jay, pictures are there!

Great mod. And my favorite type: get small lights do amazing things!

ghos
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FET driver has arrived, insulating of the driver is needed as it is floating in the head, was able to wire the driver in without taking out the led

Being flashed with the guppydrv firmware, the light is able to use one of 22 mode groups, for this light, I have set it to 100 – 25 – 2 without memory

Light is now totally usable and practical is now my daily EDC Big Smile

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

ImA4Wheelr
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I some how missed this one.  Congrats on this build.  Love it.  Very nice looking host.

ghos
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This is still my EDC today, it pairs really nicely with my Haiku, the T10T for wide flood and photo taking and the Haiku for throw and long distance, both are high cri (80+) as well and is carried daily..

I call them daishō, like the japanese samurai who carried 2 swords, one big one small :bigsmile:

ImA4Wheelr wrote:

I some how missed this one.  Congrats on this build.  Love it.  Very nice looking host.

My MTG2 Thrunite T10T Ti “Micro Sunbeam” -> http://www.budgetlightforum.com/node/41059

My MTG2 #@!$ zoomable sk98 pocket rocket -> http://budgetlightforum.com/node/27089

My SK98 Triple Nichia 219 92cri-> http://budgetlightforum.com/node/27590

Ronin42
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MRsDNF wrote:

Simply WOW. Or should that be WOWSmile

+1

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somnambulism
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I know I’m late to this thread but… Holy crap, this is amazing.

Gunga
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Just curious. How did you secure the contact board? The stock circuit is press fit with some glue. I tried pressing my circuit out. Doesn’t want to budge. I didn’t want to destroy the driver modding it.

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