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Старый 03.05.2012, 21:16 Автор темы   1
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Str ThruNite TN31 Review (XM-L U2 | 3 x 18650)

ThruNite is on a roll lately, first the Flood King and now the Thrower King. They have made a name for themselves with the throwing ability of their Catapult series but the competition has stepped up their game so ThruNite has gone back to the drawing boards and released this monster with a massive 77mm (3in) head and super smooth and deep reflector to take on all challengers. Let's see what they have in store for us.




MFG SPECS
MSRP: $220 USD
- LED: Cree XM-L U2 LED with a lifespan of 20+years of run time.
- Max 1147 lumen output using 3 * 18650 batteries.
- Level 1: 0.5 lm. 2000 hours; Level 2: 21 lm. 140 hours; Level 3: 146 lm. 22 hours; Level 4: 366 lm. 9 hours;
Level 5: 620 lm. 5 hours; Level 6: 1147 lm. 2 hours; Standby: 65 uA; Strobe: 1147 lm. 4 hours.
- Working voltage: 4V to 13V.
- Max runtime: 2000 hours.
- Max beam distance: 700 meters.
- Peak beam intensity: 75000cd.
- Impact resistant: 1.2 meters.
- Waterproof to IPX-8 standard, 2M.
- 201.70mm length, 79.00mm bezel diameter.
- Weight: 452.80g without battery.
- Aircraft grade aluminum body structure.
- Premium type III hard anodized anti-abrasive finish.
- Ultra-clear tempered glass lens with anti-reflective coating.
- Momentary forward click tactical switch.
- Strobe mode for tactical and emergency use.
- Smooth reflector for max light output.
- Highly focused beam for maximum distance.
- Tactical knurling for firm grip.
- Streamlined body design.
- Mechanical reversed polarity protection design for battery carrier.
- Intelligent highly efficient circuit board design for max performance and long run time.
- Specially designed for Military, Law Enforcement, Self-defense, Hunting, Search & Rescue and Outdoor activities.
- Intelligent temperature controlled light output for user safety.


PACKAGING / CONTENTS
None were included, I elected to forego waiting for them in order to get this review out to you guys earlier. If I receive them in the future, I'll post pics.
CONDENSED VIDEO SUMMARY
As with the TN30, here is a quick high-level video of the TN31 until I can flesh out the review in the coming days:



DESIGN / FEATURES
[NEW 5/20: Without the use of optics, the basic formula for creating a flashlight with great throw would involve a large reflector as a basic ingredient so the TN31 is not exempt. One look at its large reflector and you know it means buisness:


Of course the reflector is just one piece to the equation with the other half being the illumination source and in this case, the TN31 has been endowed with a XM-L U2 that is perfectly centered in the massive reflector:


All the colliminated light is then projected out through a double-sided coated AR lens:


The crenelated SS bezel adds a layer of protection for these components in case it's dropped head first:


...and allows one to easily see if the light is on when stood bezel down:


Somewhere there is a tool that fits into these grooves to allow removal of the bezel but since I don't have it, I wasn't able to uninstall it:


Helping to keep things cool are these fins just aft of the head, however as can be seen in the Runtime section below, the TN31 actually doesn't get all that hot:


The control ring is used to select the 6 levels of output (runs lowest from L1 to highest at L6 clockwise w/bezel away from you) as well Standby and Strobe modes. There are no explicit markings to indicate which output level you're at but the triangle indicator on the ring does align precisely with the Stand by mode (which is etched) with L6 being one click/detent away (counter-clockwise) and L1 aligning with the end of the decreasing output icon:

The solid detents coupled with the distinct and well spaced output levels enabled me to easily make a mental note of the level I was in.

The body itself features three "flat" sides of which one is unamrked, the other features the company name and slogan and the final bears the model and serial number:


There are two machined grooves that run parallel between each of these flat sides:


The body of the tube features a texturing that provides decent grip:


The tail cap features two attachment points for the lanyard and has flat surfaces allowing the TN31 to tailstand:
[pic]
There is a forward clicky switch that acts as the master on/off for the light (more details in UI section).]





SIZE & HANDLING

L to R: Sunwayman V60C | Lumapower D65V w/TurboForce Kit | ThruNite TN31 | Lighten7 Max L2A | SureFire M3LT | Sunwayman T40CS | XTAR S1 (Production)

I threw in a mix of coventional throwers that have their batteries in-line (darn it, that was the word I was searching for in the video ) as well as those that have it in parallel arrangement. I also threw in the XTAR S1 for size-reference. The TN31 is a large light!

[NEW 5/20: Even so, I still found it manageable with my medium sized hand and operating the control ring with two fingers was relatively easy (albeit slightly difficult w/just the thumb):

As expalined in my video review, the one thing I did have problems with was the semi-sharp recess where the thumb rests over to access the tailcap.]



SIZE & HANDLING

L to R: Sunwayman V60C | Lumapower D65V w/TurboForce Kit | ThruNite TN31 | Lighten7 Max L2A | SureFire M3LT | Sunwayman T40CS | XTAR S1 (Production)

I threw in a mix of covential throwers that have their batteries in-line (darn it, that was the word I was searching for in the video ) as well as those that have it in parallel arrangement. I also threw in the XTAR S1 for size-reference. The TN31 is a large light!


BEAMSHOTS
Indoors (5m)
L6


L5


L4


L3


L2


L1

For details of the above indoor shots and comparo vs. many other lights, please check Epic Indoor Shots Trilogy

Whitewall Hunting
Exposure settings sequentially from top left: 1/25, 1/100, 1/800, 1/1600 @ f2.9 on AWB (light is ~.4m to wall / camera ~.59m):



OUTDOORS
Still negotiating to get back into the underpass but for now, here is an outdoor vid of the TN31 vs. a few other lights:
Прямая ссылка на видео YouTube


RUNTIME
The relevant battery stats are provided above each runtime graph along with:
- Voltage of the battery at the start and end of the test
- Current draw as taken right before the test
- Actual runtime using ANSI FL1 (first in HR and then in M so for the RL3100 read this as 1.5hrs OR 91min)
- Also for High, captured the temperature: ambient, the head at start and the max it reached (fan was used for all bats)


As with the TN30, there is a subtle but distinct step down after 1.1 minutes, but it's only about 100lms. After that it does two more tiny step downs and then one step up as if trying to find a sweet spot and then runs just about nearly perfectly regulated for the rest of the run. Shortly after 123min, the low voltage warning (3-4 blinks every min or so) kicked and at 127 min, one of the RL3100's PCB finally kicked in terminating the run.

As can be seen, heat isn't really an issue and based on lessons learned from the TN30 run, I was able to validate that the highest heat point would be right aft of the control ring so I placed the thermocouple there. The TN31 only got to a high of 96F with the heat dissapation likely greatly aided by the large head, reflector and the copper heat sink within.

So there you have it folks, an amazing thrower with great run time and very well regulated output to boot. Good job ThruNite!

[EDIT 5/8: I redid the output and runtime to conform to more accurate measurement (see output measurement vid below for details). The above runtime chart reflects the new run. Runtime achieved w/the RL3100's this time was 126min before the low voltage warning started blinking. This time I shut off the light before the PCB could kick-in.


MEASURED PERFORMANCE
L6 - 1270lms (ANSI FL1) | 1139lms (avg for regulated run) | 87.2K lux @ 1m
Прямая ссылка на видео YouTube

I redid the output meaurement and runtime after recalibrating the sensor. I feel this is more accurate and would rather err on the side of underestimating (during calibration). Hit up the video for details but bottom line is that I feel that the 1147lms for L6 claimed by ThruNite is totally realistic.

The output of 1270lms is according to ANSI FL1 (measured @ 31 seconds), however this is before the step down at roughly 1 minute. The actual average output for the entire regulated run after that is: 1139lms]


MORE TO COME...



=======
TN31 provided by ThruNite for review

[Исправлено: turboBB, 21.05.2012 в 08:56] Причина: Whitewall shots added
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По умолчанию Re: ThruNite TN31 Review (XM-L U2 | 3 x 18650)

Outdoor shots of video comparo of TN31 vs. a few other lights are now up in OP (don't forget to flip to 720P if you're going to compare beams). Sorry that it's poorly done (blurry on some lights), I'm still learning how to make vids but lessons learned from this shoot has given me ideas for improvement on the next one.

Here are the lights (DBS V2 is off to the right somewhere):



Timeline in the vid (I have included titles as well)
ThruNite TN31 - 1:32
XTAR S1 (prod) - 2:09
Sunwayman T40CS - 3:08
ThruNite TN30 - 4:02
Niteye EYE30 / EYE25 - 5:11 / 5:55
ThruNite TN 11 (2 x 18650) - 6:43
NITECORE TM11 - 7:19
Sunwayman V60C - 8:07
SureFire M3LT (MC-E) - 8:48
Klarus XT20 - 9:38
Lighten7 Max L2A - 10:25
Dereelight DBS V2 (w/UF XM-L) - 11:07

Distance to the fence I was shining at is 246ft (75m) and to the bleachers approx. +10-15 ft.

I also redid the measured performance and runtime (again please refer to OP).

Cheers,
Tim
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По умолчанию Re: ThruNite TN31 Review (XM-L U2 | 3 x 18650)

блин был бы подешевле а
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По умолчанию Re: ThruNite TN31 Review (XM-L U2 | 3 x 18650)

Whitewall shots added
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Старый 21.05.2012, 08:57 Автор темы   5
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По умолчанию Re: ThruNite TN31 Review (XM-L U2 | 3 x 18650)

DESIGNS & FEATURES and SIZE & HANDLING sections fleshed out.
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