I have been using the Convoy M21H for a while now and I like the beam profile very much. Is there any 21700 Convoy (or other than Convoy) headlamp with similar beam profile?
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The Convoy H4 is the only Convoy headlight with a TIR lens, if that’s what you want.
What emitter does your M21H have?
If you get a similar emitter, that’s your best chance for a similar beam profile. 
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Thanks! My M21H is with TIR Linterna with XHP70.3 HI R70 LED.
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Okay, I’d go with the H4 with XHP50.2
That should be pretty similar to an M21H with XHP70.3 HI R70.
EDIT:
You could also go with the H3 with XHP50.3 HI R70
It doesn’t have a TIR lens, though.
Also, I don’t know much about the 3V XHP50.3 HI emitter choice for the H3.
Someone else on BLF should know the difference between the two.
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[never mind]
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What kind of TIR lens does your M21H have? The 12 degree one, right? Then, H4 with 10 or 15 degree lens (TIR lens for H4 with SST40 XHP50.2, 8 kinds in one pack - Convoy flashlight) should come close.
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Yes, my M21H has the 12 degree TIR Lens.
Lens Type: ar-coated glass lens and 12 degree TIR bead lens
I am still not too sure what the differences are between H3 and H4.
Google result: The primary difference is the optical system: the Convoy H3 uses an Orange Peel (OP) reflector, while the Convoy H4 uses a Total Internal Reflection (TIR) lens, resulting in a wider, more even flood beam from the H4 and a more traditional, deeper beam from the H3.
This thread is all about TIR lenses and traditional reflectors…
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Another dumb question: what do these mean? 1%, 10%, 40%, 100%? Of what? Lumen?
Current. Lumen levels will be a bit different. In the sake of simplification you can take that as lumen levels.
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