Because you prefer to use high mode there is not green in 5000K version. Also 4000K is Hi-Cri variant so it is not very efficient LED.
Wow is right! Darn you Lightbringer;-) I am really trying to fight of the urge to get one of these for myself. Officially I am still on hold as I really don’t need another light and have other things to spend my money on. However, after reading your review, decided to get one for my friends birthday present.
This really is a fantastic light that does everything I like and that 21700 is great for capacity without making the light too big for EDC. A bit too heavy for hat brim use but could be used that way in a pinch. For that duty I already have an EO2 II. The TS21 has the beautiful 4000k SST 20 same as the EO2 II. TIR as well for a wonderful beam. Even has a respectable moonlight in smooth mode. (Perhaps could configure stepped mode to do the same?) There is really nothing I don’t like about this light.
The ATR works great as far as my example goes! Haven’t messed with the calibration as the temp is correct and it stays crazy bright long enough for me. Would be interesting to do more testing but it seems like about the 4th step up in default mode is about the thermal limit of the light and that is considerably brighter than what it has to step down to when running turbo. Maybe capable os sustained 500 lumen or so? for many hours. Pretty darn good for something this size if you ask me. Will be really fun to use one in the cold weather up here as I bet it will hold a bunch more lumen.
The included cell is really good! Low IR and in the ballpark on stated capacity. Must be able to put out some good amps. Tested the light with a protected button top 18650 that works great in every single LED light I have but it could not sustain the turbo in the TS21. Guessing that the 30q would do it but I don’t have a spacer and they are too short.
I don’t really see or at least have yet noticed any significant differences between the Andrul II on this and the one on my SC31 Pro. Is that why this light will actually do a respectable moonlight compared to the SC31 pro? I’m sure not afraid to give this to my friend with the default configuration and smooth ramp mode. Simple to use and very useful. With the 21700 and built in battery check my fear of setting the ramp in such a way to unexpectedly drain the battery farther than I expect is eliminated and I like the smooth ramping interface. Only use stepped on my SC31 pro because I feel like I need better control over how much battery I have.
If my SC31 pro died tomorrow I would definitely get one of these for myself. I don’t know how long I will be able to resist anyway. This is everything I want from a tube light.
Toldja. 
Waiting for the V2 version to come on from the recent sale. Playing around with Anduril2 will be fun!
I really do enjoy my OG TS21, except that in comparison to my other SST20 4000K it’s a bit more on the greenish side.
Solution though: Don’t compare beams all the time 
SST20 greenish can not avoid, if go another LED version TS21, which LEDs better?
Just got mine today. Need to do some more testing but it’s really quite good. It’s a shame it doesn’t fit carclo optics but it seems quite nice nonetheless.
Is it possible to ask your supplier for not so green bin of SST20? The TS21 and Skilhunt E2A are unlucky in the SST20 lottery 
The Others ones are quite nice and neutral in real life.
If that doesn’t work a limited edition TS21 with Nichia 219b would be a big hit too in my humble opinion 
Less turbo output, but very beautiful beam!
nichia 219 is suit for the TIR which TS21 use now
Which colors won the survey?
And when will they be available?
Does this mean that the TS21 is now using Nichia 219? Or that the TIR could accommodate it in the future?
TIR could accommodate it
but not sure if will assemble a small batch with 219C will see is there a demand of them.
TS21 219C LED version, anybody interested in this ?
Neutral-White and camo !
Forgive my ignorance, but what would the advantages of the 219C be? Better tint? Output? Lower temperature? All I know is people love them, but I’m curious as to the specific benefits.
that is the high CRI and good beam color
Got it. I’d be interested if TS21 w/219C had Anduril 2 and power bank functionality.
219C LED version will do if reach a lowest Assembly line quantity >100 pieces 
Great tint and CRI, but lower output
I signed up to these forums just to say I agree on 219c (or any high efficiency diode with 90+ CRI).
Also better run time is a must. Turbo drops down to an embarrassing ~200 lumens fairly quickly. The combination of a more efficient LED with a buck driver could help keep a much higher sustained output.
Maybe call it TS25 and sell it for more. I’d pay.
Nice to have bonus features: tail switch and a green or tan/sand colour…. But now I’m just being greedy lol
It's nice to see you, dondizzurp!
