Convoy M21 or L21 with which emitter?

14 posts / 0 new
Last post
sidpost
Offline
Last seen: 1 month 3 days ago
Joined: 06/19/2021 - 10:07
Posts: 76
Location: United States
Convoy M21 or L21 with which emitter?

I am returning to flashlights after leaving modded Maglites a long time ago and running various factory lights from SureFire to cheap big box store options.  I need and want a better light today.  I think I want a large emitter for a balanced spill and flood versus a generous hot spot.  I want to stick to 21700 batteries.

I need to spot black newborn calves at night in addition to the cows at ranges up to 200 yards.  I also need to 'spotlight' feral hogs and predators at similar ranges.  The online beam shots I have found have not been very helpful.  I think the S21A heads are too small and the L21A are too large and throw-focused so, is M21B best for me?  There is the XHP35 HI emitter which I am not familiar with and the XHP50.2 which I think is a larger emitter so, it may be the best one for me.

Am I on the right track?  What have I missed or overlooked?

 

Thanks,

Sid

zoulas
zoulas's picture
Offline
Last seen: 5 hours 10 min ago
Joined: 06/01/2020 - 08:35
Posts: 2114

For long range, an Osram emitter would be better.

Yokiamy
Yokiamy's picture
Offline
Last seen: 6 hours 55 min ago
Joined: 10/18/2016 - 15:47
Posts: 3122
Location: Netherlands

The M is placed size wise in between the L and S size.
Personally i do prefer the (12V) XHP35 over the (6 or 3V) xhp50, it gives a very decent throw but enough spill and gives a very nice uniform and even beam.
The XHP50 is extremely power hungry and has an ugly corona color.

Jack Kellar
Jack Kellar's picture
Offline
Last seen: 3 days 5 hours ago
Joined: 03/09/2014 - 14:21
Posts: 2174
Location: Throwing bolts at anomalies

An M21A (same head as the C8) with an Osram CSLNM1.TG will give you a laser-focused throwy beam. The 10% mode, in my experience, reaches 200yd comfortably in a clear night.

The M21B (same head as the M1, “P60 module” style) with an XHP50.2 3v will be quite floody and will only throw any appreciable distance by brute lumen output.

sidpost
Offline
Last seen: 1 month 3 days ago
Joined: 06/19/2021 - 10:07
Posts: 76
Location: United States
Yokiamy wrote:
… The XHP50 is extremely power hungry and has an ugly corona color.

Curious about that comment. From what I read in various places, the run time between this and different emitters at similar lumen levels, run times were essentially the same.

Regarding color, the YouTube and other various beam shots often aren’t terribly accurate but, the colors I have seen seemed consistent for the color of the chosen emitter.

It is apparently an older emitter so, the newer ones probably are a little better to a lot better. Such are the problems of shopping online from a computer and not having anything close in person for a real life comparison.

sidpost
Offline
Last seen: 1 month 3 days ago
Joined: 06/19/2021 - 10:07
Posts: 76
Location: United States

Jack Kellar wrote:
An M21A (same head as the C8) with an Osram CSLNM1.TG will give you a laser-focused throwy beam. The 10% mode, in my experience, reaches 200yd comfortably in a clear night.

The M21B (same head as the M1, “P60 module” style) with an XHP50.2 3v will be quite floody and will only throw any appreciable distance by brute lumen output.

Candela or Lux output in the flood portion of the beam is a good thing for spotting critters and newborn calves at night.

A tight hotspot with little flood would be like looking at the world through a soda straw IMHO.

In an urban environment though, your light would work pretty well for lighting up a sidewalk, staircase, parking lot, etc. while providing a tight beam for flashing someone while you make an escape from trouble.

For a working light like this, I think more of “situational awareness” with adequate throw. Beyond 200 yards really isn’t useful so, with ~3,000 Lumens I want more spread in the hotspot and better lux in the flood.

TIFisher
Offline
Last seen: 3 days 5 hours ago
Joined: 11/26/2020 - 11:43
Posts: 327
Location: USA

At 200 yards, I think you’d appreciate the definition an Osram emitter can provide. Most are pushing between 700 and 1100 lumens. At distance, Osram lights have (in my opinion) a good amount of usable spill once they get above 35% output or so. I have Convoys M21A (CSLPM1.TG), M21B (CULPM1.TG), both 6A 12 mode drivers. Of those two, the M21B has a larger spot, more spill, and enough juice to make your 200 yard range (and a little more). The M21A smokes it in throw distance, though.

max
max's picture
Offline
Last seen: 3 hours 5 min ago
Joined: 02/17/2014 - 18:55
Posts: 460
Location: Austin, TX

The M21B with the Osram CULPM1.TG emitter would be my pick for what you want to do:

I have one and love it.

Convoy M21B with KW CULPM1.TG

This particular one has the 6A driver and puts out a lot of light.  Simon (Convoy owner) also offers this same identical light with an 8A driver but it gets hot in your hand pretty fast. The 6A light takes longer to heat up since it's not driven as hard.

If you want a tighter spot with less spill then get the M21A (21700 version of Convoy C8) with the Osram CSLPM1.TG

Convoy M21A

Even better get both. 

 

 max

sidpost
Offline
Last seen: 1 month 3 days ago
Joined: 06/19/2021 - 10:07
Posts: 76
Location: United States

Thanks! The M21B with KW CULPM1.TG (6A current) sounds like a good option for me and is a modest cost relative to a lot of other options.

Funtastic
Funtastic's picture
Offline
Last seen: 10 hours 58 min ago
Joined: 06/26/2014 - 02:14
Posts: 2286
Location: New Zealand
sidpost wrote:
Thanks! The M21B with KW CULPM1.TG (6A current) sounds like a good option for me and is a modest cost relative to a lot of other options.

….or you could wait for the L21B

Here’s my demo video of the green version I assembled, white still to come.

Convoy designed this for me as I wanted a gun mountable L21A

The focus needs to be fixed, but I have been working with Simon to get it spot on. It gets better range than the L21A!

Garageboy
Offline
Last seen: 2 days 4 hours ago
Joined: 09/15/2020 - 09:11
Posts: 38
Location: Brooklyn, NY

Funtastic, any news on convoy’s centering and focus update?

Funtastic
Funtastic's picture
Offline
Last seen: 10 hours 58 min ago
Joined: 06/26/2014 - 02:14
Posts: 2286
Location: New Zealand
Garageboy wrote:
Funtastic, any news on convoy’s centering and focus update?

Centering is always going to be an issue with these tiny osram chips in the Convoy models that use screws to fasten the mcpcb, I almost always have to push it a little.

Simon has a new gasket installed for the focus adjustment, not sure if it’s as good as I have it, I’ll know once they arrive in 3 weeks

sidpost
Offline
Last seen: 1 month 3 days ago
Joined: 06/19/2021 - 10:07
Posts: 76
Location: United States

While I can't speak to anyone else's flashlight, centering on mine is good.  The beam is well centered but to be honest, depending on how I hold it, it can seem off-centered or perfectly centered when I look at it or rotate it while looking at the emitter.

That small emitter and the shape of the reflector/head make an optical illusion to my eye, almost like a kaleidoscope.  What really matters though is the beam which I have no complaints with considering the emitter.

Funtastic
Funtastic's picture
Offline
Last seen: 10 hours 58 min ago
Joined: 06/26/2014 - 02:14
Posts: 2286
Location: New Zealand

Yes, some are okay, but most are off center. As a dealer I go through hundreds Smile and have to open up most and give them a slight tweak. You can’t tell outside though which is what these chips are for, long range