[Review] Convoy M21C-U

Good read.

About UI, it’s standard issue we’ve seen in some other lights where manufacturer was adopting ramping control. I’d call it first batch.

It should just polish up those ramping speeds at low and high, nothing else.

Not having memory of lowest low it’s a standard in many other flashlights, Olight M2R and Seeker2 Pro for example. Once you enter it you cannot get it again after power interuption.

Rings in the beam is also “standard” in other lights too. Usually helps if you paint the inner sides of the lens ring with the marker... :)

And also reflector emitter opening cutout, painted with marker. Those tiny tricks help a lot. Some folks even anodize bezel ring to completly remove ring artifatcs and enhance look.

I like my M21C-U but because of not adjusted ramping speed i’m using standard 4mode option.

I really like it and the side switch is certainly a bonus… When I’m out walking the dog, it would be a pain to try and access a tail switch if i needed to adjust

Ramping speed, this strange issue when 2 click to turbo and can’t ramp down immediately and ramping from the lowest mode. But I’m sure it will be fixed :wink:

Me too. I hope Simon is reading this...

Thanks for the review. I think this is a beautiful light. I have an M3 that I love, but it has a clumsy UI as well. Might be OK for muggles.

Exactly the same with some of the Sofirn models. I don’t think the average user would actually care tbh. Here at BLF we can actually become quite picky when we have been exposed to NarsilM and Anduril

I bought a few M21C-U. As for the reflector rattling, mine all came rattling too and the bezel was not tighten.
I was thinking if Simon let it be loose on purpose so as I can change to OP Reflector that I have bought together.
After tightening the bezel, the rattling gone.

Maybe a fatter O-ring to take up the slack?

There were quite a few “early” lights with both ramping and stepped that I ditched ramping after only a few irritating seconds and snapped it back to stepped-mode only.

And yeah, both Narsim and Andouille do it right as far as ramping. Hell, even my (Airpro) DC7 does ramping right, very Q8ish.

Love your reviews, you are adding something unique that is your own character. :+1:

You are right, what a perfect flashlight, driver, LED, but the UI
Whoever supplied the driver to Simon, did a lousy job.

It could be our fault as well, constantly pushing him for more and more at this price range, maybe all he could do

Thanks for your review Mocarny. I really enjoyed it.
M21C-U seems to be a good flashlight except for its ramping UI clumsiness.
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Simon mentioned that the upcoming Convoy M3-C (M3 with USB-C charging) will have ramping UI, hopefully it (and the next batch M21C-U) will have a better ramping.
Simon also mentioned about M21C-U will be upgraded with USB-C.
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Seems like a good move forward, more Convoy models with e-switch, and USB-C.
Hopefully they’ll also come with a better UI.

Great review and translation.

Great review indeed.
For new M21C -U I prefer non USB-C variant if we want to have best waterproofnes of it. Also most of times I prefer to charge my batteries with external charger. The problem with most powerful flashlights is that USB rubber cover frequently pop out from internal air pressure when flashlight body is hotter. For example SP36.

Yeah, that’s why you gotta love magnetic charging

Just get my black M21C-U with 3000K.
Step changing mode enable after clicking 6 times from off position. And we have 4 comfortable positions: minimal for low light in room (1), second for walking in the night woods (10), third 30, and fourth - 100. Returning to stepless dimming - 6 times clicking in off position.
For me it’t absolutely best mid-range light.

Thanks! I’ll try this on my smaller flashlights. :slight_smile:

Amen.

I hope Simon doesn’t let himself to persuade himself to implement onboard charging into his lights by people who use their lights as toys, where for some people flashlights are tools on which their safety depends on, eg. while caving or doing urban exploration.

How does it compare to M3 in terms of beam profile - throw/spill/etc?

Hi, I updated my review, decreased host and build score because of rattling reflector. I discovered it is not only my problem, my friend ordered about 12 flashlights and each of them has the same problem.
If you have this issue too, let me know.

That’s odd. Mine is tight as hell o_o

Yes, this is a very common but in no way it is a big issue

This is a step by step :heart_eyes:
1- Open your palm.
2-Hold the flashlight by the head
3-Push the head inside your palm
4 Screw clockwise
5 check rattling and repeat 3,4,5 until you hear no rattling,

you can also do it with a self healing pad or mouse pad….