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

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Dale
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I just purchased one of these from a member. Can’t wait for it to get here!!!

JH
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Ordered a NW shocker from the FF christmas sale, got it yesterday.
Kind of have mixed feelings about this light, it’s bright and the machining is nice but I feel that I overpayed for what it is. It had a few apparent flaws to start, there was some of that thermal paste (Fujik?) on one of the led domes! Had to take it apart to clean that off. Isopropyl alcohol worked. There’s also a few scrathes on the lens (no ar coating either) and on the anodizing. I expected better QC for 150 $…

I guess it’s a good host to swap the leds in the future, xm-l2 maybe. Anybody know where to get an ar coated lens for this?

Oh hi btw, I’m kinda new here Smile

Shaquille
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welcome to blf JH Smile
some interesting pictures comparing the well known and admired TK70 and the newer half breed BTU Smile
i think these heads that btu used were most likely made by Fenix themselves (fenix high quality machining says it all). probably the fenix engineers were doing trials with 18650s to make their final product the TK 75 and these left over ones were auctioned off to Ric .Anodizing may have been done by the btu team as there is a slight colour change i detect and also the hot to touch logo missing.just my theary. I may have shot my mouth off too early reagarding the quality without seeing this light in hand!!! appologies to the …lux readings seems to range from 80000 to 138000lux on english, italian and german websites .not sure if this is due to consistency of driver from diffrent batchs or probably lux meter differences

Brighter one is the btu :8) .both lights are on Turbo Shocked


these pictures show the mods done by fenix …

Shaquille
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tk70 on turbo and on the right is btu on “high” mode
while it true that it drops from its 3000 lumen Turbo in 3 minutes ,its 2000 lumen high mode seems to compete wih the tk70s 2200 lumen for 1.5h !!
distence shots will probably tell the diffrence

Shaquille
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rdrfronty
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Well, at least Greta would likely mop the floor with little sweet thing. Heck, she might be able to even kick my butt! So I’m ok with this comparison Smile

rdrfronty
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Shaquille wrote:
So we had out showdown in the parking lot . my work mate and I
It was Mike tyson vs Gorge foreman both at their prime!!
Foreman beats mike by shear power
so yes my BTU won against the tk75. way too much light coming outa this thing at
TURBO….the Fenix fought hard !!! Btu has more flooding and the Fenix Tk75 does not have the btus deep reflector gets overwhelmed at throw . the tk has a bit winder hot spot . btu has much more INTENSE hot spot and it clearly shows at short or long distance ( sorry Couldn’t take any pictures
the btu is much larger /heavier/mean looking too.
WINNERBTU shocker by knockout !!!

Very cool! So did he admit defeat? Anyway I’m glad to so your BTU held its on in the light-off. So are are you cool with the BTU now?
DENGOH
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rdrfronty wrote:
Shaquille wrote:
So we had out showdown in the parking lot . my work mate and I
It was Mike tyson vs Gorge foreman both at their prime!!
Foreman beats mike by shear power
so yes my BTU won against the tk75. way too much light coming outa this thing at
TURBO….the Fenix fought hard !!! Btu has more flooding and the Fenix Tk75 does not have the btus deep reflector gets overwhelmed at throw . the tk has a bit winder hot spot . btu has much more INTENSE hot spot and it clearly shows at short or long distance ( sorry Couldn’t take any pictures
the btu is much larger /heavier/mean looking too.
WINNERBTU shocker by knockout !!!

Very cool! So did he admit defeat? Anyway I’m glad to so your BTU held its on in the light-off. So are are you cool with the BTU now?

rdrfronty will take your BTU if you are not happy with it. Wink

cool i'll see you when you get there

Shaquille
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rdrfronty wrote:
Shaquille wrote:
So we had out showdown in the parking lot . my work mate and I
It was Mike tyson vs Gorge foreman both at their prime!!
Foreman beats mike by shear power
so yes my BTU won against the tk75. way too much light coming outa this thing at
TURBO….the Fenix fought hard !!! Btu has more flooding and the Fenix Tk75 does not have the btus deep reflector gets overwhelmed at throw . the tk has a bit winder hot spot . btu has much more INTENSE hot spot and it clearly shows at short or long distance ( sorry Couldn’t take any pictures
the btu is much larger /heavier/mean looking too.
WINNERBTU shocker by knockout !!!

Very cool! So did he admit defeat? Anyway I’m glad to so your BTU held its on in the light-off. So are are you cool with the BTU now?

He admited defeat but during the day he was whining that it wsnt dark enough or his battery wasnt charged enough etc Smile
and yes im cool with my btu . its a showoff light for sure Wink
u keep your paws off my btu fronty 8)
  • i replaced all the springs on the battery carrier with thicker ones
    the original ones are not holding the battery tightly .just pull them outwaards and you will realise how soft and squishy they are

rdrfronty
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Nice mod. I’ll be sure to keep that in mind if mine give me any issues.

Shaquille
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NEW UPDATE Tk 75 vers BTU SHOCKER
so we decided to go out to a darker place and test it out again today Over a large field instead of a parking lot …Tk 75 battery was also changed to the fenix 18650 and the fenix turbo seems to have become bit brighter!!
we tried at long distence and close up shots
both seems to have similar output
with the btu SLIGHTLY OUTDOING the tk75 in throw .
SO ITS MORE Of WIN BY DECISION FOR THE BTU NOW!!

DENGOH
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Actually after owning SR95S UT that have 250kcd that have very obvious better throw than TK70, I can tell you her advantage diminish after 200m as we can’t see that far. Although those within 100m will be brighter because of better throw, but TK70 throw is already bright enough and flood better. So for a 1000m vs 600m thrower I have, the realistic practical gain is only maybe 100m from distance 100m to 200m.
And BTU vs TK75, the practical gain in throw is even less. For quality in UI and material, TK75 is the one to get. For modding purpose, BTU is the one to get. For newbie like your colleague, TK75 is right choice. And you are right to get BTU since you can do modding on it.

cool i'll see you when you get there

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DENGOH wrote:
Actually after owning SR95S UT that have 250kcd that have very obvious better throw than TK70, I can tell you her advantage diminish after 200m as we can’t see that far. Although those within 100m will be brighter because of better throw, but TK70 throw is already bright enough and flood better. So for a 1000m vs 600m thrower I have, the realistic practical gain is only maybe 100m from distance 100m to 200m.
And BTU vs TK75, the practical gain in throw is even less. For quality in UI and material, TK75 is the one to get. For modding purpose, BTU is the one to get. For newbie like your colleague, TK75 is right choice. And you are right to get BTU since you can do modding on it.
yes true . i ordered the dry driver
im weighing my options wheather to change driver or not 8)

Pedro2013
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I get my TBU Shocker today… by DHL
Thanks for the nice and objective review. Your pictures told thousend of words.
The choice is up to you…
Firstly I would like to buy the Xtar S1 or the Fenix TK75…. after read your review…. I changed my mind….
Now I like the TBU Shocker: big, heavy and solid quality! I can’t wait for longer… DHL… where are you now!

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I ordered the DRY driver after received the TBU after 4 business day.
When receive the DRY driver, I’ll change it… for more light!

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I thought someone already tried DRY driver in BTU, it is not improving much.

cool i'll see you when you get there

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DENGOH wrote:
I thought someone already tried DRY driver in BTU, it is not improving much.

YUP .I changed mine few days ago . not much improvement. same output  . changed  back to the digital driver now .it drives at 3.8 amps and the dry is at 4 amps??? .. have a good soldering iron ready if you do change. its a bit of a chalenge to change the driver .you can end up screwing up the good digital driver. the dry driver is cheap. THE ONLY THINK I LIKE ABOUT THE BTU NOW AFTER USING IT FOR A FEW WEEKS IS ....THAT I CAN UPGRADE IT OR REPAIR IT EASILY...NOTHING ELSE. THATS IT . I RECOMMEND A TK75 IF YOU ARE A NEUBIE .

rdrfronty
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Shaquille wrote:

DENGOH wrote:
I thought someone already tried DRY driver in BTU, it is not improving much.

YUP .I changed mine few days ago . not much improvement. same output  . changed  back to the digital driver now .it drives at 3.8 amps and the dry is at 4 amps??? .. have a good soldering iron ready if you do change. its a bit of a chalenge to change the driver .you can end up screwing up the good digital driver. the dry driver is cheap. THE ONLY THINK I LIKE ABOUT THE BTU NOW AFTER USING IT FOR A FEW WEEKS IS ….THAT I CAN UPGRADE IT OR REPAIR IT EASILY…NOTHING ELSE. THATS IT . I RECOMMEND A TK75 IF YOU ARE A NEUBIE .


All I can say to that is no other LED light on the market offers the combo of throw and power of the BTU U2. Simply put, if this light doesn’t impress you, there is nothing out there that will.
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rdrfronty wrote:
Shaquille wrote:

DENGOH wrote:
I thought someone already tried DRY driver in BTU, it is not improving much.

YUP .I changed mine few days ago . not much improvement. same output  . changed  back to the digital driver now .it drives at 3.8 amps and the dry is at 4 amps??? .. have a good soldering iron ready if you do change. its a bit of a chalenge to change the driver .you can end up screwing up the good digital driver. the dry driver is cheap. THE ONLY THINK I LIKE ABOUT THE BTU NOW AFTER USING IT FOR A FEW WEEKS IS ....THAT I CAN UPGRADE IT OR REPAIR IT EASILY...NOTHING ELSE. THATS IT . I RECOMMEND A TK75 IF YOU ARE A NEUBIE .

All I can say to that is no other LED light on the market offers the combo of throw and power of the BTU U2. Simply put, if this light doesn't impress you, there is nothing out there that will.


Sucks that I have the NW version because it doesn't impress me. Frown
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Shaquille wrote:

DENGOH wrote:
I thought someone already tried DRY driver in BTU, it is not improving much.

YUP .I changed mine few days ago . not much improvement. same output  . changed  back to the digital driver now .it drives at 3.8 amps and the dry is at 4 amps??? .. have a good soldering iron ready if you do change. its a bit of a chalenge to change the driver .you can end up screwing up the good digital driver. the dry driver is cheap. THE ONLY THINK I LIKE ABOUT THE BTU NOW AFTER USING IT FOR A FEW WEEKS IS ….THAT I CAN UPGRADE IT OR REPAIR IT EASILY…NOTHING ELSE. THATS IT . I RECOMMEND A TK75 IF YOU ARE A NEUBIE .

In turbo the DRY driver runs in direct drive, so the amperage totally depends on the quality of the batteries. If you used IMR, you could probably get 6+ amps to each LED and possibly blow the thing up if you wanted.

JOE wrote:
Sucks that I have the NW version because it doesn’t impress me. Frown

Just curious, but could you elaborate?

Slewflash 

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DENGOH wrote:

Just curious, but could you elaborate?



It's huge so when you pick it up you think holy cow this thing is going to be like an HID but it isn't. It's a cool conversation piece but the TN31 beats it for throw and the TN30 spanks it for flood, and by the looks of it the TK75 beats it overall. I need to do some further testing in an open area against my other lights to give it a far comparison though.

For the size of this light and the three c8-sized reflectors it should blow my socks off. It might be because I have the NW version?
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JOE wrote:

DENGOH wrote:

Just curious, but could you elaborate?



It’s huge so when you pick it up you think holy cow this thing is going to be like an HID but it isn’t. It’s a cool conversation piece but the TN31 beats it for throw and the TN30 spanks it for flood, and by the looks of it the TK75 beats it overall. I need to do some further testing in an open area against my other lights to give it a far comparison though.

For the size of this light and the three c8-sized reflectors it should blow my socks off. It might be because I have the NW version?

Even though there’s no point arguing opinions I just want to say that even though a TN30 will beat it for flood and a TN31 will beat it for throw, what if you want both the throw AND the flood? We don’t have any side-by-side comparisons of the CW and NW together, so we can’t be 100% certain you would be impressed by the CW. I’m using the Shocker daily for my needs and I can say that it does meet my illuminations requirements (and surpasses them by a lot), but I do agree it is too big. I’m getting a bit bored of it now, and want to get an insane single emitter thrower now.

Bottomline: It’s not a light for everyone due to the size, weight and output, but it beats carrying both a dedicated flooder and thrower since it combines them into one.

Slewflash 

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Slewflash wrote:
-JOE- wrote:

DENGOH wrote:

Just curious, but could you elaborate?



It's huge so when you pick it up you think holy cow this thing is going to be like an HID but it isn't. It's a cool conversation piece but the TN31 beats it for throw and the TN30 spanks it for flood, and by the looks of it the TK75 beats it overall. I need to do some further testing in an open area against my other lights to give it a far comparison though.

For the size of this light and the three c8-sized reflectors it should blow my socks off. It might be because I have the NW version?

Even though there's no point arguing opinions I just want to say that even though a TN30 will beat it for flood and a TN31 will beat it for throw, what if you want both the throw AND the flood? We don't have any side-by-side comparisons of the CW and NW together, so we can't be 100% certain you would be impressed by the CW. I'm using the Shocker daily for my needs and I can say that it does meet my illuminations requirements (and surpasses them by a lot), but I do agree it is too big. I'm getting a bit bored of it now, and want to get an insane single emitter thrower now. Bottomline: It's not a light for everyone due to the size, weight and output, but it beats carrying both a dedicated flooder and thrower since it combines them into one.


That's what I meant by "overall" for the TK75. I have no doubts the TK75 is a much better light than the Shocker. I just can't justify spending that much on a flashlight that doesn't have XM-L2 emitters right now.
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Please dont get me wrong ...The BTU is an IMPRESSIVE thrower/flooder light !we all agree with that but the overall thinking we have is when holding it in our hands ,,the sheer size and weight gives the impression that this thing will shock and awe but it dsnt ...Iv held the tk75 in one hand and held the btu in the other hand a and the tk75 is very light weight compared to the btu ,and yet gives it a serious competetion!!! The good news is that when a 1500 lumens led does come out(it will be easy to upgrade while the tk75 will not be) il updgrade this thing and once it gives 4000 lumens and throws 900 meters il say then only will it justify the weight and size of this thing .

 

@ slewfish -I use 3 keep power 3400mah on my BTU.so battery isnt a factor.There probably was a increase .i have no measurement tools. but to the naked eye there was no diffrence when i compared it to the tk75 when using the DRY driver, which was disappointing . The original digital driver performs flowlessly.

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A cool white BTU is pretty much dead even in throw with a TN31. Personal tests on mine and my brothers lights show this. This is what I have recently gotten -
Brothers TN31 – 126k
My TN31 – 122k
My BTU – 125k
All tested under the same conditions at the same time. All 3 lights running Keeppower 3400’s. The BTU’s throw is sometimes misleading because it lights up so much crap in the air that it is harder to visual detect stuff way down field like some dedicated throwers. But I have also verified its throw with true measured distances and a meter. The BTU will truly throw 700m.
And I’m truly glad this light isn’t like an HID. If it was, I wouldn’t want it. I also must add this light will easily out throw and out power my Ryobi 35wt HID. And it spanks it with the instant on that only LED’s offer.
And I don’t doubt the TN30 might have more flood than the BTU. However one should note that even the new XM-L2 TN30 only throws 440m – WAY short of the 700m the BTU does. TN30 is much closer to a king in throw than a BTU. Basically these lights have different intended purposes.
Now a TK75 is worthy contender. Output is about the same, but even falls about 100m short in throw.
The BTU is a thrower first in foremost. It just happens to put out a ton of light doing it.
But yes the light is pretty big and heavy. I personally like that. Besides its considerably smaller than my SR90.
But I honestly admit its not too practical for everyday flashlight duty. But I also don’t think a 3000 lumen, 700m throwing light was ever intended for everyday use.
But all this aside I know this light isn’t for everybody. It just stumps me when people say the light doen’t impress them. I’m just curious what would it take to do that exactly?

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I am really curious why you keep boasting about BTU performance that only last for 3 minutes.
After that 3 minutes, its output and throw is worse than TK75. And you can’t ignore it is using 3*18650, lousy battery carrier, lousy UI with tail clicky, not so shiny reflector, no AR lens. To me, BTU is more expensive than TK75, it doesn’t have any value except maybe the short 3 minutes that will shorten LED and battery life.

cool i'll see you when you get there

rdrfronty
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DENGOH wrote:
I am really curious why you keep boasting about BTU performance that only last for 3 minutes.
After that 3 minutes, its output and throw is worse than TK75. And you can’t ignore it is using 3*18650, lousy battery carrier, lousy UI with tail clicky, not so shiny reflector, no AR lens. To me, BTU is more expensive than TK75, it doesn’t have any value except maybe the short 3 minutes that will shorten LED and battery life.

Well I could also say after 20min the BTU will KILL the Tk75 with its 2000+ high vs the 1100 high of the TK75. So that’s a tit-for-tat in my mind. And a mute point when both lights can be turned right back to turbo. And it’s also very likely with the 2200otf I tested my BTU on high (not turbo) it will still out throw the TK75.
And I’m not saying the BTU is a better light or has a better value than the TK75. I’ve tried and tested my brothers TK75. It’s a great light, no question about it. I find both very equal in my eyes.
And the BOTH the TK75 and BTU run at basically the same amperage – appx 3.8A. And a LED setup with good heatsinking like it is in both lights will last longer than you or I will live.
Heck my TN31 is factory driven at over 4.2A.
Dale
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rdrfronty wrote:
DENGOH wrote:
I am really curious why you keep boasting about BTU performance that only last for 3 minutes. After that 3 minutes, its output and throw is worse than TK75. And you can’t ignore it is using 3*18650, lousy battery carrier, lousy UI with tail clicky, not so shiny reflector, no AR lens. To me, BTU is more expensive than TK75, it doesn’t have any value except maybe the short 3 minutes that will shorten LED and battery life.
Well I could also say after 20min the BTU will KILL the Tk75 with its 2000+ high vs the 1100 high of the TK75. So that’s a tit-for-tat in my mind. And a mute point when both lights can be turned right back to turbo. And it’s also very likely with the 2200otf I tested my BTU on high (not turbo) it will still out throw the TK75. And I’m not saying the BTU is a better light or has a better value than the TK75. I’ve tried and tested my brothers TK75. It’s a great light, no question about it. I find both very equal in my eyes. And the BOTH the TK75 and BTU run at basically the same amperage – appx 3.8A. And a LED setup with good heatsinking like it is in both lights will last longer than you or I will live. Heck my TN31 is factory driven at over 4.2A.

+1

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20 minutes is very long compare to 3 minutes. Your ASSUMPTION of current consumption about TK75 is wrong as it doesn’t match runtime measurement of 4*18650 and someone already make measurement about TK75 using power supply. BTU is over driven for 3 minutes, harming LED and battery, but does not better than TK75 that last for 20 minutes. BTU throw better due to its reflector, but flood worse than TK75, your beamshots show this but you still claimed BTU flood as good as TK75 (not sure you have changed your mind about this).

Just to neutralize, so that not many newbies fall in the “trap” buying BTU. There are better choices. We don’t need to support an expensive copycat brand.

cool i'll see you when you get there

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DENGOH wrote:
20 minutes is very long compare to 3 minutes. Your ASSUMPTION of current consumption about TK75 is wrong as it doesn’t match runtime measurement of 4*18650 and someone already make measurement about TK75 using power supply. BTU is over driven for 3 minutes, harming LED and battery, but does not better than TK75 that last for 20 minutes. BTU throw better due to its reflector, but flood worse than TK75, your beamshots show this but you still claim BTU flood as good as TK75.

Just to neutralize, so that not many newbies fall in the “trap” buying BTU. There are better choices. We don’t need to support an expensive copycat brand.

I’d say the BTU fills a niche that the TK75 does not simply by not having Loctite in its threads. Easy to upgrade down the line.

3.8A will not harm an XM-L. You’d have to pump 4.44A through an XM-L in order to match current density of the XR-E EZ900 at its maximum forward current rating. 4A through XM-L to match XP-E EZ1000 at 1A. The smaller emitters have considerably higher thermal resistance than the XM-L (8, 9, and 2.5 °C/W, respectively). To that end, the XM-L handles 1A/mm^2 current density better than the XR-E/XP-E.

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