The M21B 8A you referenced was a “mod” done by the reviewer, as Convoy only offers the 6A version as a stock selection IIRC. I have an M21A inbound (due next week), so can’t speak to that in a comparative sense performance wise, but I didn’t consider it as a “pocket thrower” due to the head size. My CSLNM1 lights are both Lumintop GT’s. Although I like them, I think Convoy offers better drivers for the NM1. If it were me, it would be a matter of 18650 (M2) vs. 21700 (M21B) moreso than the difference in emitters. C8(+) is great to have in the glove box of the car, but for stuffing in a pocket, I’d be going with one of the more compact options.
Tough choice…good luck!
Are you sure ;)? Thanks for comment.
@captainkirk
Thanks for comment, I need to think more what I really want 
Get zero warranty from Convoy and get him to build my custom version for hunting.
- C8+
- Osram CULPM1
- Ramping driver
- Use a Samsung 30Q for 8-9A
Convoy models usually come with a rubbish spring bypass, so you should redo it yourself. I always install dual springs on the tail.
This build gets 1,300 lumens with a range of 977m
The ramping driver allows you to set your own brightness on the first two settings, so even though it gets hot quick at 100% you can lower it to what suits. Convoy just can’t give a warranty on the LED since the driver has no thermal Regulation. 100% gets approx 2min 20sec before reaching 50°C at a room temp of 23°C.
….or grab the CSLNM1 LED at 5A for 700 lumens at 962m. The NM1 LED just has a narrower beam, so it depends what your preference is
If you can handle the NM1 Green, at 5A it gets 1,150m with 1000 lumens.
Here’s a demo I made for my website featuring the same models above
The Convoy S2+ with CSLNM1 gets 387m. I also have a demo for this below
Just keep in mind that any Convoy model the uses the Osram LEDs will have rings around the hotspot on a wall. These are overlapping ovals around the hotspot, not noticeable in use though.
M2 doesn’t have much waterproofing due to the order and design of the bezel/oring/lens. Would strongly suggest the M1 or M21B over it.
Thanks for videos. I need to buy flashlight, don’t want to assemble it by myself, I would need to have powerful soldering iron and maybe some other tools which I don’t have and at the end it propably wouldn’t be as I want Convoy S2+ looks good so M21B could be only much better with CULPM and bigger diamater.
@BurningPlayd0h
Thanks for info. One choice less 
I wasn’t suggesting that you build anything. I just mentioned asking Simon (head guy at Convoy) to build you a custom C8+ . Any model that uses a spring bypass on the tail will snap though, this will require fixing at some stage. You could ask him to install a high current spring instead though.
According to JaredM estimation the M21B (I’m not sure whether 6A or 8A) should do 105kcd, which translates to 2*sqrt (105000) = 640m. The C8+ with CSLMN1 should have 700-800m of throw, but much lower total lumens. Edit: ignore my C8+ throw estimation
If you increase your budget a few dollars, the BLF-D80v2 is really nice for the price, and fits in a pocket quite easily. 
@PiercingTheDarkness
Ahhh ok, I will ask him. Thanks.
@ggf31416
Thanks for information, maybe I will go with something less pocketable.
@raccoon city
SST40 or XPL?
You could always wait for the Astrolux EA02
@PiercingTheDarkness
It’s to big for me I think. Don’t want bigger than M21A which isn’t pocketable.
A vote here for the M2+NM1. Runs cool enough at 4.3A and settles into a pretty sustainable 80 kcd while still being cool enough to hold. Really a slim light that handles heat very well. Comes with a (strong) pocket clip if you care about that.
M21B is a better host for bigger emitters IMO. Interested in seeing actual measured values and opinions from someone with both.
34-45mm bezel is an awkward size for me. Too big to pocket EDC, and so if its going in a bag or holster, you may as well jump to a 50mm class the way I see it. After 55-60mm, I feel a light should be multi-cell, so that really creates another big step. The EA02 looks like a nice size and configuration. Super deep reflector. I really hate that its a blatant rip-off of an FF design though.
For maximum lumens, I would go with XHP50.2, but it looks like it is no longer available.
https://www.aliexpress.com/item/4000333646371.html
Since that seems to be gone, I'd go with the SST40 version.
50.2 isn’t a thrower. With the thermal limitations of a host this size sustained lux will be worse than a s21b+pm1
You just said above that you might get something less pocketable
@PiercingTheDarkness
Yes but I mean something ~M21A sizes Anyway, thanks for suggestion. Maybe on photos it’s bigger than I think.
Oops.
I changed my mind about the BLF-D80v2.
At $27.70, it's a good deal, but right now it's at $37.70, which I think is too much.
Sorry about that.
I read a topic about this flashlight and for BLF member it should be 27.70$ (or it was months ago). I will try to buy it with discount maybe, which one will give me better throw?
Spend a few $ more and get a noctigon KR1