BTU Shocker - $99 Free Ship at FF

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ILIKEFLASHLIGHTS
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18sixfifty wrote:
Rusty Joe wrote:
How bright is the BTU driver in high? And does it sustain that output? How are the other levels? What kind of lux does the stock unit produce?

It’s incredibly freaking bright and stays bright, the difference between high and turbo isn’t so much that you would really notice a ton except for when really throwing out a long ways. The low is actually a nice usable walking low and the medium is bright bright. I don’t know about lux but as I said it’s incredibly bright. I will probably buy one again someday.

I would say the one big concern is the size, it really is a tank. I see all the various lights with a handle that don’t really need it but this one could use it for sure. I used the lanyard a lot. I wrapped it around the head three times and it created a kind of handle, but it was a pain taking it on and off each time you wanted to change batteries.

Yea but it really ain’t as heavy as the TK70 with 4 D cell batteries in it. I weighed my TK70 I used to have on my digital fish scales that are extremely accurate. It weighed 3 lbs even. The BTU weighs 1200 grams = 2.64554715 pounds. SO even with 3 18650 batteries you should be under 3lbs.

relic38
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My BTU weight exactly 1200g loaded. FYI. Wink
Edit:
For comparison, my SRK weighs 492g loaded.
Also, the UF-T90, 1040g loaded (3×26650).
The BTU is my heaviest light so far.

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FlashPilot
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Are these good springs for the battery carrier upgrade mod?
http://www.fancyflashlights.com/goods.php?id=140

rdrfronty
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ILIKEFLASHLIGHTS wrote:
So how bright is this light after it steps down off of turbo and to high mode? That’s what I want to hear from those that have it. Will it truly put out 2000 lumens on high and how does it throw on high?

And if I wnat to get one what driver should I get?

Thanks.


My stock BTU tested at 2880 at 30sec on turbo, 2160 on high, 928 medium, 68 low.
Now with xml2’s on copper – 3670 at sec on turbo, 2520 high, 1025 medium, 75 low.
So even high is very respectable. I never tested throw on different levels, but I’d be willing to bet its still 100k or more on high.
And both tests done with 3400mah protected Keeppowers. And this is the BTU driver.
Rusty Joe
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Is PWM bad with the BTU driver?

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FlashPilot wrote:
Are these good springs for the battery carrier upgrade mod? http://www.fancyflashlights.com/goods.php?id=140

I think these are ones I used on one Shocker - really stiffens them up if your not into the soft stock ones. IOS has pretty much the same ones, believe sold as the "A" size. I got them both - went nuts buying any/all springs... If you copper braid the springs though, not sure you really need them.

Tom E
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Down to 11 in stock, really has me think'n.....

Joe - think I read recently the BTU stock driver is not using PWM's at all, but regulated in all modes. The DRY driver does use PWM, and I think poorly -- read this in a BTU thread, not sure where now...

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Rusty Joe wrote:
Is PWM bad with the BTU driver?
I am real sensitive to PWM and it is not at all visible.I have the BTU driver,not the dry.
ILIKEFLASHLIGHTS
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rdrfronty wrote:
ILIKEFLASHLIGHTS wrote:
So how bright is this light after it steps down off of turbo and to high mode? That’s what I want to hear from those that have it. Will it truly put out 2000 lumens on high and how does it throw on high?

And if I wnat to get one what driver should I get?

Thanks.


My stock BTU tested at 2880 at 30sec on turbo, 2160 on high, 928 medium, 68 low.
Now with xml2’s on copper – 3670 at sec on turbo, 2520 high, 1025 medium, 75 low.
So even high is very respectable. I never tested throw on different levels, but I’d be willing to bet its still 100k or more on high.
And both tests done with 3400mah protected Keeppowers. And this is the BTU driver.

How far from your metter when you did that test?

rdrfronty
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For throw – I’ve done 5m, 10m, 15m, & 25m tests. All about the same results – about 125k stock, 181K with the XML2’s and UCL lens. I have not tried it just high yet though. But a stock high with 2160 lumens it still should be respectable.

ILIKEFLASHLIGHTS
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What does your meter say for the BTU stock at 1 meter? Did you check it there?

relic38
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So many questions Smile
Springs on the holder are fine, I added copper braid, but didn’t help much.
I didn’t detect any PWM on the BTU driver (which is now dead), On the DRY driver I cannot see it, but I can hear it in all modes (even Turbo) if I point the light at a black piece of paper. Seriously, sheer the intensity of the light makes a noise when it hits a dark piece of paper. Crazy bright.
My particular unit tests relatively low, and I think there may be something wrong with my light. Everyone else seems to have no problems, so it may be a one-off.
There have been a lot of BTUs sold today. I think they will be gone by tomorrow.

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gavrook
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rdrfronty wrote:
My stock BTU tested at 2880 at 30sec on turbo, 2160 on high, 928 medium, 68 low. Now with xml2’s on copper – 3670 at sec on turbo, 2520 high, 1025 medium, 75 low. So even high is very respectable. I never tested throw on different levels, but I’d be willing to bet its still 100k or more on high. And both tests done with 3400mah protected Keeppowers. And this is the BTU driver.

Just wondering what XM-L2’s on copper you used? The only ones I can find are from LED-tech.de and are pretty expensive, about $60 for 3 delivered!

rdrfronty
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ILIKEFLASHLIGHTS wrote:
What does your meter say for the BTU stock at 1 meter? Did you check it there?

Truthfully, I don’t know. I’ve tried several other lights that throw over 100k at 1m, and everyone reads off, many way off. SR90, TN31, tn31mb, Deerelight, etc. If I light is a serious thrower, I just start them at 5m. My TN31mb (426k) and SR90 w/ sbt70 (325k), even reads off a little at 5m. But not too far off. At 10m the read proper. And by proper I mean the same consistant numbers from 10m – 100m.
From all my testing, this is the way I see it as best minimum testing distances -
0-50k – 1m test
50-100k – 3m test
100-200k – 5m test
200k & up – 10m test.
Haterade
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Any one have a NW Shocker?

I like copper

ILIKEFLASHLIGHTS
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rdrfronty wrote:
ILIKEFLASHLIGHTS wrote:
What does your meter say for the BTU stock at 1 meter? Did you check it there?
Truthfully, I don’t know. I’ve tried several other lights that throw over 100k at 1m, and everyone reads off, many way off. SR90, TN31, tn31mb, Deerelight, etc. If I light is a serious thrower, I just start them at 5m. My TN31mb (426k) and SR90 w/ sbt70 (325k), even reads off a little at 5m. But not too far off. At 10m the read proper. And by proper I mean the same consistant numbers from 10m – 100m. From all my testing, this is the way I see it as best minimum testing distances - 0-50k – 1m test 50-100k – 3m test 100-200k – 5m test 200k & up – 10m test.

No problem.

Your getting quite the collection there.

ILIKEFLASHLIGHTS
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According to the website the BTU weighs 1200grams without batteries. That’s 2.6lbs roughly.

ILIKEFLASHLIGHTS
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Specification:

◎3* Cree XM-L LED (U2) CW / CREE XM-L T6 3C NW with a lifespan of 50,000 hours
◎Battery: 3 × 18650
◎204 mm (length) x 52 mm(body width) x106 mm(head diameter)
◎1200-gram weight (excluding batteries)

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gavrook wrote:
rdrfronty wrote:
My stock BTU tested at 2880 at 30sec on turbo, 2160 on high, 928 medium, 68 low. Now with xml2's on copper - 3670 at sec on turbo, 2520 high, 1025 medium, 75 low. So even high is very respectable. I never tested throw on different levels, but I'd be willing to bet its still 100k or more on high. And both tests done with 3400mah protected Keeppowers. And this is the BTU driver.
Just wondering what XM-L2's on copper you used? The only ones I can find are from LED-tech.de and are pretty expensive, about $60 for 3 delivered!

Bare emitters reflowed onto 20mm SinkPAD's - I do it in a frying pan Smile, works pretty well, did dozens, check temp with a temp meter. They were XM-L2 U2's 1A or 1C's, forgot which. IlluminationSupply is a great source for the 1C's, but they might have been from Mouser.

Tecmo
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Quit thinking about it and just buy it!

relic38
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Tom E, they were XM-L U2 1C from IS. A great thrower tint, IMO. I did virtually the same mod.
It’s not hard to do, but I would not recommend it be your first mod. Try something smaller first.

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Flomotion
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So, I took the dive and bought one. I am moving North to Canada to visit relic, and see if he can get me on public assistance… J)

Flomotion

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Don’t you know, flashlights are the new precious metals. Everyone buys up flashlights when things get tough. Wink
OK, All I can offer you is free medicare and all the maple syrup you can eat. And bacon, lots of bacon. J)

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gavrook
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Tecmo wrote:
Quit thinking about it and just buy it!

I did Shocked

relic38
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Only eight left!
If you listen closely, you can hear Ric counting his money Wink
It’s a great light, at a great price. To all the new owners, enjoy!

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feilox
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one this is do i lose lumens if i opp for the NW emitter vs. CW?

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

relic38
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Based on reports from others, NW is not desirable. My recommendation (and echoed by others) is CW, BTU driver.

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ILIKEFLASHLIGHTS
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relic38 wrote:
Based on reports from others, NW is not desirable. My recommendation (and echoed by others) is CW, BTU driver.

That’s what I got. I’m excited to get this baby.

panthervision23
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I think I’ll wait until it becomes cheaper.

:bigsmile:
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Darn you guys!! |( I ordered in NW, so now you forced me to request a change to CW… before I swap in XML2’s later on. Big Smile

After they run out, this might be the end of the venerable BTU. Only 7 left…

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