Thanks for the review Richard. No low voltage cutoff?
Great review Richard , thanks !
The same thing with Archer 1A V3 , which i reviewed (using 14500) .
Good question...I'm not sure if my protected battery or the light cut off first. Let me put an unprotected 14500 in there and I'll let you know.
I guess it can’t have low voltage cutoff, otherwise AA’s would never work…duh!
First let me say thanks for doing the review.
I think the review is fine , as you covered all the bases and the opinion and views of someone as highly regarded as yourself , should speak volumes as to the quality of the product.
I think maybe I got lucky with the sample I got to review though , as mine does not have any green tint to it at all.
Here it is on High Mode and on Turbo with a pure white garage door.
15 feet (High Mode)
Turbo Mode
No, it could still have it. Basically, the firmware logic will say if the voltage is below 2.5V disable low voltage protection, but if the voltage is 2.5-4V then look at it.
Thanks for the review. I have previous reviewed the TH20, and it is currently my favourite headlamp for URBEX or when light painting. A few points where I would differ in the analysis:
- Keeppower protected 840mAh 14500 (2015 version - 52.7mm long) fits with no issues.
- Neutral white tint is better than the cool white - yellow with a hint of lime.
- It is not lightweight compared to 14500 peers, thought is lightweight compared to 18650 lights. The extra weight seems to make it very tough though!
- Low voltage protection appeared to work during my review (though I can’t rule out the cells protection circuit).
”
◦Firefly (0.3 lumens, 14 days)
◦Low (1.6 lumens, 21 hours)
◦High (230 lumens, 95 minutes)
◦Turbo (250 lumens, 93 minutes)
”
Fo Realz? I’m not much impressed with this mode spacing. Minimal difference in brightness and runtime, why even have separate modes. Looks to me like we have a Firefly, a Moonlight, and two Highs. No low or medium. Is that consistent with the results you saw?
My eyes do suck these days…but to me that looks a little on the green side. It almost reminds me of the XP-G3 tint.
It ramps between low and high!
Haha well it could be my eyes also because mine are getting way bad. I really don’t see a green tint though in the picture or outside , but you may be able to detect it a lot better than me also.
I'm glad that your battery fit, but tell me, do these batteries look like they fit? I never said that no protected batteries fit; I said that two of the batteries I tried didn't fit and that there's no good reason for the tube not to be longer since there's plenty of spring in the tailcap. Don't put words in my mouth.
Efest @ 53.25mm --- not even close.
EVVA Protected UR14500P @ 52.51mm
My sample is NOT neutral white. I know what neutral white looks like, and this isn't it. Like I said, yours may be different, and it looks like yours and Robo819's copies may have a better LED than mine, but the one I got is a "garbage" tint, so when you buy this light you get to play the tint lottery.
I'm glad that someone is here to keep me honest; remember, this is a review, not a paid advertisement like most "reviews" are. 
Shill on and keep calm.
I think that “shill on” comment could be seen as being offensive to many reviewers here. Yes, we may received the product for free, but many reviewers including myself have enough honesty and integrity to point out the negatives (or at least use politically careful wording) during a review. Reviewing takes a lot of effort and long time, and even getting a free product is often barely worth the effort.
Incidentally, as you pointed to a product that you do sell, during your review of a product that you don’t sell, then your “shill on” comment is a bit of a case of pot calling the kettle black.
Have a nice day. 
So what we now know is there there is both a tint and length lottery. In other words unlike say Zebralight, Thrunite needs to work on their Production and QC departments adherence to spec (or the spec it self is too loose (see engineering and marketing)).
Let hope they take this fair and honest review and actually find more value in it then we consumers. Meaning if they actually take the time and make the effort to to correct the Tint and Length lottery then their product will be the better for it, and there is hopefully value in that to Thrunite.
Now we have a review that is just short of issuing corrective actions to Thrunite for free, that is a great deal for them. I say if they are smart they will see they received their monies worth.
Funny as I was thinking about a month or two ago how I rarely read about the “tint lottery” these days. In my recollection I used to read about the tint lottery so more often about, what 5 to 8 years ago?
From Low 1.6 lumens to High 230 lumens? What just happened to the Medium…?
What a horrible mode spacing…
Variable, almost infinite output between low and high.
Oh. My bad. I skipped reading the review when I saw the specs.
This really got my interest. I’m considering getting one.
Same here. Was surprised with this feature for this price. Check out a video on youtube, I think it’s pretty sweet.
The light has pretty much infinitely variable levels due to the ramping feature. Like I said, the user interface is pretty nice. If you get one with a good emitter you'll be happy with it for a AA light.