Nice review as usual turbo,thanks I have been watching this light for awhile and as cool as the concept is,I couldn't bring myself to lay out that kind of dough.I can't help but think how that tiny heatsink that the leds are mounted to can efficently get rid of that kind of heat.My question is how much does it sag on high within the first minute?Cool design though and beamshots should be awesome.
Would like to see some reviews of lower budget lights,with your style of photography, because they will look less budget then! 
As always, thanks for the review, and the wonderful pics
Another great review.
The initial “ramping” is strange for an LED light, no? I’ve always thought instant high was one of many advantages LEDs have over HID lights.
Based upon its performance here I can’t see any reason to choose the SP6 over the nearly 50% cheaper TN30….
BTW, how wide is the carrying strap? I’m trying to figure out what’s an optimal size for my TK70. I want to replace its OEM strap because it’s a bit too narrow.
All, UI section & chart now up.
It actually doesn't sag but rather slowly ramps up for the first minute or two. Check runtime section for details. I'll try to get outdoor shots over the weekend.
Thx! I have a few coming up. ;o)
It is peculiar but I suspect intentional. The TN30 features it as well and by design to protect the LED's and circuitry. I suspect the same can be said for the SP6 albeit it's not touted as a feature. The SP6 comes with six quality Panny cells and a charger so that should be factored into the equation as well but in the end, what is within budget for one is out for another and vice versa. Only one can justify ones needs based on that. The strap is just over 1.5" wide.
LOL :-)
Still working on the review but in the meanwhile here is a video deep dive of the reflector and emitter stalk as well as UI:
http://www.youtube.com/embed/Q6mIDiQSi4c
EDIT: And here's one covering heat testing:
http://www.youtube.com/embed/DBKcxqYUSGo
IMO, it should allay concerns re: heat issues w/the SP6 however, with the following caveats:
this test was easier on the SP6 because:
- the SP6 was pointed straight up and there was no lens covering the heat allowing it to escape better (however keep in mind that air is actually a very poor medium for thermal exchange)
this test was much harder on the SP6 because:
- there wasn't a use of a fan and the reflector (which is actually a substantial chunk of aluminum) was not in place to further help draw heat away from the stalk (and as we all know, aluminum is a very good medium for thermal exchange)
Between the two, I'm leaning towards the latter but I'd like to hear your opinions on this.
Strangely, there wasn't any thermal compound on the base of the reflector. Personally, I feel this would've further aided heat dissapation. Of course, this has got my curiosity piqued so I'll do some add'l testing in the future to see what the heat on the reflector is without any compound and then again after Arctic MX-4 compound is added.
More testing to come! ;o)
Cheers,
Tim
Thanks for all the work you are putting in to these reviews BB.
For some reason this light has gotten me interested although it is certainly outside my budget.
But I think that it is the fact that it is small for a 6*18650 battery light + it has great output although your numbers seem somewhat lower than what I see others report. And it looks great. Its like a floody light with great throw.
Tim, do you wear special goggles when doing your emitter testing?
I’m seeing spots from looking at the monitor - he must need to use welding goggles.
Thx guys! Bulk of Design/Features section now added (I'll wrap up battery carrier and charger next).
@indy - no, but I actually should. I was seeing spots for quite a long time after I made each video... 
@ChiX - welding goggles wouldn't be a bad idea. 
Is it possible to use this flashlight when charging it?
You're going to love it here, Beaver!
Nice and exact review…. The price blows ……
Does cost, but for duration performance and mix of flood/throw, about the best on offer out there at the moment. Weigh it up against other quality multi emitters out there and it still comes out competitive.
@Beaver - welcome! I suppose you could but I'm uncertain what effect that would have on the charger.
@raccoon - lol, I always enjoy your "Welcome's"
That’s one fat beaver you have hanging there !
Short of the whitewall/outdoor shots (and potentially some add'l runtime testing), this review is now wrapped up. Tons of new material added along with full Charging graph and details (search multiple instances of 8/18). If you can't be bothered to go back to OP, my opinion on the charger is that it's quite good, exhibiting a very good CC/CV charge curve.
Cheers,
Tim
Another incredible review, TurboBB, thanks so much! Frontpage’d and Sticky’d.
dang really good competition vs. Olight SR95UT.
Speaking of the Olight SR series, rdrfronty sent me his SR90 for testing so I decided to take a size comparo shot to give an idea of how the SP6 stacks up:
L to R: L3 Illumination K40 | ThruNite TN31 | XTAR S1 | SPARK SP6 | Olight SR90 Intimidator
I do also have the SR90 shots in Pt2 (check sig) so you can compare vs. SP6. The SR90 is a much stronger thrower to be certain but total output is a bit less. I hope to get outdoors soon now that Sandy has passed so I can do another comparo shots/video.