This BTU may out throw my TN31’s. I posted the picture at 110yds in my XM-L thrower thread. Now I listed it before the TN31. But going on the pictures there, the BTU looks brighter. Go check it out. I’ll have to compare them head to head. Let me go take a picture my 115,000k/cd TN31 at 110yds. We will see which one looks to bet the better thrower. But looks may be deceiving. But I don’t know. That shot at 445yds and 300yds looks very good on the BTU.
Yeah, I didn't need this either. If I get one, it'll be with the DRY driver and swap in XM-L2's on copper stars. I really don't need this...must resist.
I would still have to choose the TK75 over the BTU Shocker. You got a lot less weight in the TK75 and a lot easier to carry light. But I will tell you right now this BTU Shocker fooled me on how great of a light it is and how well it throws. I do think it will out throw the TK70. No doubt in my mind.
As to the ‘ramping’ down. It does it very gradually., Not like the 70 when it kicks down. The BTU is so gradual. Its not noticable to the eye. A meter is needed to notice see it. Great thread bro
Thanks Dale. Now I can say I am glad I bought this BTU. I love it man! It’s better than I hoped. I think it does beat my TN31 in throw. That BTU is just awesome.
Yup, I’ve been saying these lights are awesome from the beginning. Now everybody is seeing the light
As a side note about the TN31 and BTU, from our experience they are very comparable in throw. We’ve had two BTU and two TN31’s now. This is what we’ve gotten in throw -
TN31 (brothers)–126K
BTU (mine-no AR lens)–125K
BTU (mine with UCL)–130K
TN31 (mine)–121K
BTU (brothers-no AR)–119K
So pretty equal really. I guess just slight variances in qualities in LED bins or drivers can make one slightly better than the other.
Well my TN31 I used in that shot above was tested by masha_1 to be 115,000 lux. I would say it’s safe to say that the BTU I got is more like 130,000 or maybe more. I do believe there is more than 15,000 lux between them just looking at the pictures at 110yds. The BTU smokes the TN31.
rdrfronty, are those BTU numbers from yours that was modded by Tom E? Mine is on the way to him to have XML2’s on sinkpads installed as well as a resistor upgrade to bring it up to 4.7A. I can’t wait >_<
Regardless (don’t use glasses for computer usage), this thread, along with the $99 price, got me interested in this light again, so I ordered one with the BTU driver, plus an extra DRY driver, just in case…
Nope. Like the others said that was premod. Mine is now 181K and 3670otf after 30sec. Thats with XM-L2 U2’s, copper sinkpads, better wires, and good thermal paste. I do not have the resistor mod though. I am getting my carrier redone with better springs and/wick mod, so that should allow a little more current and boost me a bit more. My testing was done with Keeppower 3400mah protected cells.