The beam with the TIR is indeed intense 
As I mentioned, the beam with these Osram and Carclo 10507 is intense, not floody. There is “only” hotspot and it is very narrow.
I put the beams below in my review and compared it with other TIR lenses. There is no pair to this one
These are all from the TK16 with Osram!
Wow! I never knew a TIR could make such a nice, tight beam! :heart_eyes:
Nice work, nice beam !
It has rings when shining it to a white wall, but towards the air outdoor, no spill and no rings, just this narrow beam!
And I just had a golden opportunity to compare them! Fog came down to town so I went out to enjoy it!
TK16 on the left, S2 on the right!
And a little disclosure, the TK16 was on ECO mode on this photo, not in POWER mode. Meaning, the turbo was around 780 lumens and not 1300 lumens 
It might be easier to make your 3D printed piece run parallel and then flare out just past the bezel for the time being, no? Could even have it rest of the crenelations or something.
For this advice, please send one set of your lens adapters. PM me for address I have an L2 host sitting at home right now.
I built L21A with the CULNM1.TG led and had some interesting results in a somewhat bad way.
So far in my limited experience with small die leds most of them if not all (black flat being the worst) required the reflector to sit like crazy low, even sometimes it was required to file the reflector in order to focus the leds properly. Today when i finished the L21A build i took one of the normal xp Convoy gasket and reamed it to 5.5mm to fit the CULNM1.TG led and on my surprise after few different gaskets and heights i somehow think that even the stock height of the gasket seems too low for this led.
Has anyone built L2/L21A with this led and can help me figure out how to focus this led properly, the beam is horrible, small bright hotspot with huge fairly bright corona and some rings of course.
Measured intensity was 385.000cd, i think this is a bit low.
Gasket height about 0.5mm
Stock xp gasket
Focusing required me a lot of trial and error, but finally in my C8 it is (almost) perfect and now i have a clean thin beam doing over 200 kCd in a C8 on 2,8 A.
I think it should be able to do more, but then i have to file down my reflector and bezel, something which i don’t feel like doing it. Maybe later
Might try this when ill find time to test and actually read everything there.
I also have C8 with the 1mm², highest ive seen was 214kcd and i am almost 100% sure that it does not need any modifications on the host in order to be properly focused, this flashlight has one of the cleanest beams ive ever had in a modified thrower. With that said i do not know how you all get these numbers, 200kcd @ 2.8A is insanely good, throw some more amps at that led… it begs you lol 
After this and this post, I put the 2 flashlights (Convoy S2 and Acbeam TK16) under the same conditions (same night, same specs on the camera). Here are the comparative beamshots (TK16 left, S2 right):
198m (Farthest trees)
208m (House)
310m (white factory)
Those who are struggling whith centering and focusing may like this:
If you have a link for 4040 my second CULNM1 and my Luxeon Vs will thank you kindly. And my fingertips. Reaming 3535 a centering ring hurt my fingertips.
I found that using a 5.5mm drill bit works perfectly fine and no fingers will be hurt during the process. It usually takes me 2-3 min by hand to drill the normal xp convoy gaskets.
Sorry, i have not seen any 4040 gasket.
Wait, so TIR optics have larger spill compared to reflector on s2 ? is it because optics are tiny 10mm or something else ?
because i’ve ordered 20mm optics (10199) to use with this osram led and i want almost 0 spill to decrease glare. did i made a wrong choice ?
Please note that this is a TRIPLE TIR (carclo 10507) not a single led TIR! It has 3 White Flat leds below it so the beam will be wider than the S2 (1 White Flat + Smooth reflector)!
About your choice, I am not sure because I don’t know that optic. Also, once it is a TIR (Total Internal Reflection) I am not sure if you will be able to get 0 spill on it! But please report when you have it!
Also, please note that the Acebeam has a very that hotspot but then it has “rings” around it! So the spill is still there but it is not so much delineated.
See them here:
Convoy S2 (Left) vs Acebeam TK16 (Right)
Yes, that’s what i thought after posting that as well, since it’s 3x10mm optics beam will be wider than single 20mm optic such as carclo 10199.
since you own both lights, maybe you can answer this - s2 vs tk16, which one has more glare if it’s switched on towards year direction but not pointed at your eyes straight ? i believe s2 should have more glare because reflector.
thing is i’m trying to modify my motorcycle auxiliary spot lights, to reduce glare for incoming traffic. so far i have tried replacing stock xml2s to CSLNM1, it did increase throw and reduced glare tiny bit, but leds got burned within 2-3 hrs because low clearance between reflector and led mcpcb short the wires. so now i’m trying to replace reflector with 20mm tir optics. with CSLNM1. hopefully it will work better.
thanks
Here is a comparison for the TK16 Osram edition (L) vs a Jaxman E2L with triple nichia 219c 4000K ® (both lights use the same Carclo 10507 optics)
And here is a comparison for the TK16 (L) vs a Convoy S2+ XPL-HI with SMO reflector and 4B tint ®
Which is left and which is right? With such overexposure on the left beam it is difficult to judge the beam shape.
Edit: I think I get it, I was distracted by the direct reflections by the shiny garage door.
And maybe a bit of luck. I put a white flat in a C8 and the results were almost perfect. Almost
Though I did make some mistakes along the way and a lot of thing could have been done better.
So I bought a set of identical or better parts, treated those with utmost care, and tried to build a perfect one.
To make a long story short: despite my efforts, whatever I tried, it did not even come close to the first light.
Lights are like dogs, treat them well and with respect, because you might never find another one like the first.