Review: BTU Shocker (3 x XM-L T6 NW | 3 x 18650)

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rdrfronty
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Thanks the. Great review. Really looking forward to getting my U2 version in. If it ever ships……

jaynick
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great review! i cant wait! i got the same configuration as the one reviewed (nw, regulated driver)

id love to get an AR lens and a gitd o-ring for the lens. anyone have any leads??

jaynick
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the can you please post any other lux measurements of similar lights that you have, like the tn31 you mentioned?

_the_
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Here are some throw figures measured at 4m (just like this BTU)
- TN31 stock CW ~90kcd
- FF STL-V6 de-domed ~95kcd
- Skyray King NW ~20kcd
- Small Sun T08 stock ~35kcd

And then there is this one, just proving that my meter doesn’t top up at 100kcd..
- X6 with de-domed XM-L U3 w. copper pcb ~210kcd Wink

=the=

 

southland
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Thanks for the review, been waiting on this one. Outside throw shots would be nice if you get a chance. Thanks again.

Pulsar13
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_the_ wrote:
Here are some throw figures measured at 4m (just like this BTU) - TN31 stock CW ~90kcd - FF STL-V6 de-domed ~95kcd - Skyray King NW ~20kcd - Small Sun T08 stock ~35kcd And then there is this one, just proving that my meter doesn't top up at 100kcd.. - X6 with de-domed XM-L U3 w. copper pcb ~210kcd ;)

Care to test it further than 4m? 

I think 2100 measured TK70 to be 80kcd at <10m, but the reading became 97kcd at 13m.

The greater distance will allow multiple beams to fully converge and give the final intensity reading. 

2100
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Pulsar13 wrote:

the wrote:
Here are some throw figures measured at 4m (just like this BTU) – TN31 stock CW ~90kcd – FF STL-V6 de-domed ~95kcd – Skyray King NW ~20kcd – Small Sun T08 stock ~35kcd And then there is this one, just proving that my meter doesn’t top up at 100kcd.. – X6 with de-domed XM-L U3 w. copper pcb ~210kcd Wink

Care to test it further than 4m? 

I think 2100 measured TK70 to be 80kcd at <10m, but the reading became 97kcd at 13m.

The greater distance will allow multiple beams to fully converge and give the final intensity reading. 

Yeah man, it’s 80+ for the shorter distances, and my copy is 92kcd actually. Not a lot, but still there is a difference.

But 80k cd is quite low. Wonder if it’s really T6 3C.

Fenix TK70 is also T6. But there could be some output differences (slight) within the T6 bin as well.

3.6A is high enough, there probably won’t be much of a difference with the DRY at say 4.x amps. If this is 3.6A with PWM (however slight) then there is a very very slight loss as well. << — I noticed this with the DRY driver…..the earliest ones are full blast with no PWM, and the latter drivers are with PWM even in turbo mode just that the PWM perhaps switches on and off at 95% power xxx Hz, ie a wee bit cut only... while the lowest modes are like 5% power xxx Hz. I do not have the latest 700Hz DRY driver.

So we’ll need the U2 version and see how it does. Big Smile

jmpaul320
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mine just arrived! threw some aw 3100s in it and let her rip! great companion to my nw skyray king… one for throw one for flood!

charging up batteries now since they were @ 3.6v before

2 day shipping from ric to usa!

Would you mind keeping the wrong flashlight?
Best wish, May
Tmart service team

 

Soumil wrote:

PLEASE HELP ME GEARBEsT! IM LITERALLY CRYING!

 

Chicago X
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Pulsar13 wrote:
...80kcd isn't impressive for the price, and the output is just at King's level...

 

My NW SR King metered almost a fourth more than his, so please don't take these as absolute numbers.

 

I would guess that _the's_would hit over 100k lux on a higher-reading meter.

 

I'm starting to regret not jumping on the pre-order...

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_the_
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Outdoor beamshots added to OP

=the=

 

rdrfronty
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Thanks for the beamshots.

dthrckt
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nice shots

I like the BTU tint more than the others

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CouldUseALight
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That mouseover vs the TN31 is jaw-dropping. Shocked

MattSPL
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Very nice beamshots Smile That BTU is a beast :bigsmile:

sb56637
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Thanks very much for the review! Frontpage’d and Sticky’d.

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Slewflash
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Shaquille wrote:
Pulsar13 wrote:

Great review the. Sorry I don’t follow the general enthusiasm for this $150 light, 80kcd isn’t impressive for the price, and the output is just at King’s level. Given the hype that this was called “super thrower”… hmmmph… not quite there. Maybe beamshots will tell a different story, but right now I’m not too impressed. 

agreed with pulsar . it falls below my expectations. same output as a king with large throw..well it has a head 3 times the size of a king duhh .it seems to be user serviceable freindly with the old school methods used .the upside down mounted mounted battery springs look gheto!!! why not make custom spings for it..the glass does not have anti reflective coating !!! isnt some thermal paste electically conductive?.the amout of thermal paste smeared all around the leds doesnt want to spend $180 with 3 panasonics 3100s $35 = $200 .the batries have to to notch to provide the 3.5 amps and only the panasonics are up for it…. use a u3 emmiter ..whats with this T6 .
its a pimped up light made from a collection of parts tk70 head/spings picked up from a shelf etc . Is there any waranty ???

This is the NW T6 version. There is a U2 version available also, which outputs around 3k lumens.

Slewflash 

_the_
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@Shaquille

I fail to understand the need to attack this light or my review of it, but I'd like to try to answer to some of points you brought up.

First of all, I didn't get this light for free. I paid the normal pre-order / introductory price, and i think Slewflash did the same for the light he reviewed.


1. T6 & output

As Slewflash pointed out, an U2 CW version is available. It was my own decision to go for T6 NW instead of U2 CW. The output is lower, but the tint is more important in my planned usage.

Over four times the throw of Skyray King is very impressive to me.


2. Battery carrier

I think the battery carrier is very high quality. Upside down springs look funny, but they work really good when inserting the batteries. I would take this carrier over the Fenix carrier (or the linked DIY carrier) any day.

 

3. Emitter mounting & Thermal paste

I agree that the thermal paste around emitter stars doesn't look good, but I'll explain how this has happened: The emitters are pressed against the heat sink by the aluminum reflector, which is tightened with the screw through the heat sink. So, during the manufacturing, some thermal paste is applied under the stars, after which the reflector is tightened so that the all extra paste comes out (as we know, less paste equals better thermal transfer)

This can be thought to be sloppy job, but it results in good thermal characteristics, as can be seen in the thermal graph.

 

4. Only Panasonics are good up to 3.5A

Not exactly true. Panasonics are good cells, but there are others that can be used too. I use XTAR 18700 2600mAh, which are based on Sanyo cells, and can easily provide 3.6A / cell. Even some cheaper cells can do this.

 

5. AR coating

I agree. This light would deserve an AR coated lens. I'll upgrade it with one if I manage to find a suitable one.

 

Final words:

I'm sorry if the review or light itself wasn't good enough for you, but I tried my best to describe what I think of the light and why. After all, I'm still very happy with this light.

=the=

 

_the_
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The most enthusiastic flashaholics get the lights first. Some of them even pay extra for quick DHL shipping.. Wink

If I had to choose between TK75 and this light, I would choose both. Really. They are so different..

On the other hand, between TK70 and this, it would be this, hands down.

=the=

 

Shaquille
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the wrote:

The most enthusiastic flashaholics get the lights first. Some of them even pay extra for quick DHL shipping.. Wink

If I had to choose between TK75 and this light, I would choose both. Really. They are so different..

On the other hand, between TK70 and this, it would be this, hands down.

i didnt sleep for 2 days awaiting for its review !!! im the enthusiastic flashaholic :bigsmile:

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I agree the tk75 is a better buy, even with slightly less throw you get 2600 lumens for longer with a superior build, although I wouldn’t mind owning the Btu as well Smile

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DENGOH
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Every reviewer can put the rating he wants to. Of course, every reader can question his rating. I am one of them that question the 5 stars ratings.
To me BTU is really a lower quality job comparing the full package of TK70 or TK75. The UI, the AR lens, the HAIII body, the battery holder, the reflector finishing, all are not as good as Fenix. I really doubt this BTU worth USD150 where some can get TK70 for USD175, somemore it doesn’t involve R&D cost as much as it copy Fenix TK70 and can’t copy 100% as it involve a lot of R&D cost to copy 100%.

It is either the reviewer doesn’t own a TK70, else he won’t ignore the differences.

cool i'll see you when you get there

Slim Pickens
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Since everything inside save for the emitters’ heatsink simply unscrews, you can easily swap in XM-L2s once they become available. User friendly upgrades FTW.

rdrfronty
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Well I for one wouldn’t take take a TK70 or TK75 over a BTU even if they cost less than it did. And I actually like both of those lights. And not worth $150? What other LED light can beat or even match the BTU Shockers combo for output and throw? Basically 3000otf and 135K(U2 version)? None. That alone justifies the cost and then some. But on top of that you have a quality heavy duty body, regulated output, nice heat sinking, and a very compact size considering the output numbers.
Mine just showed up today, though I haven’t been able to get my hands on it yet. But I’m really looking forward to putting through the paces with my SR90 and SRK for comparisons sake.
Sorry the for getting a little away from your review. Just some of the above negativity has me baffled.

Chicago X
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Shaquille wrote:
some professinalism/technology/inovation has to go into mounting leds and driver it the light...i expect more from our learned btf memebers...we can spend this money on our kids education instead ..well il try and wake you up from this sleep with some picture compaarions of how a quality products looks like to make better informed desicions when buying a PROFESSINAL 18650 BATTERY CARRIER LOOKS LIKE THIS....reviews can be deceptive when manufacturer provides free light to reviwer ...

Bold mine.

My goal is not to offend you, but it's difficult to take you seriously in your critique when you come off as an uneducated 12-year-old.

1) The reviewer paid for the light

2) The battery holder is of higher quality than those of the last 2 Fenix lights I purchased - both well over $100/ea.  I have used the same holder in a couple of my triple XM-L builds.

3) We get it, you don't like the light - now please go buy a Fenix, and treat us to a thorough review. 

 

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tatasal
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Well, this is a public forum. This is open to all, from drunkards to Phds! A complaint not worth its salt will just die a natural death.

DENGOH
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I think Shaquille have done many will not do, and it need courages to do that, as it is considered offensive to others, to wake up others about quality of product or workmanship. Budget light doesn’t mean low quality or copycat. A good budget light will be like BlackShadow Terminator 4, or Trustfire X100, the design must consider all aspect including safety and unique design. And do according to published specification at this USD150 price point, AR Lens means good AR lens, not just simply unknown coated lens.

cool i'll see you when you get there

Chicago X
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Shaquille wrote:
(i speak 4 other languages) how many do you speak???

Three, fluently - with conversational capacity in two more.

Thanks for asking.

 

The ability to relay ideas among members here, especially among non-native English speakers, has always been impressive.  Many can do so with greater ability than quite a few of us who have English as a mother tongue.  This is not a question of a language barrier.

 

Your posts are not simply informative, they are dismissive, belittling and confrontational.  There is a wide range of acceptable debate available without resorting to such rhetoric.

http://wardogsmakingithome.org/index.html

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Shaquille - I value your feedback. In some cases i completely agree. _The_ provides impressions based on he's own expertise and as an engineer your feedback is substantial. I was a little disappointed by comments directed at _the_ direct or indirect it works against you and disrupts your purpose. That said in a few months the outspoken members here ( they don't hold back or sugar coat there opinions) will cast an overall impression, and a verdict..

_the_ , As always a fantastic review and Thank You!!

 


_the_
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In case someone didn’t notice: BTU Shocker can be purchased for $150 (again, matching the pre-order price!) from FF’s Xmas Special offer

(there are also other interesting offers like DRY or Black SRK for $55)

=the=

 

flashlight man
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the wrote:
In case someone didn’t notice: BTU Shocker can be purchased for $150 (again, matching the pre-order price!) from FF’s Xmas Special offer

(there are also other interesting offers like DRY or Black SRK for $55)

Thanks for sharing! Couple interesting deal there.

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