Muyshondt Aeon Mk III Aluminum Flashlight Review

Muyshondt Aeon Mk III Aluminum Flashlight Review

The Muyshondt Aeon flashlight has seen many revisions, and the Mk III aluminum is the one I’ve landed on.  Here’s more info about this tiny light, and probably (possibly?) some information you haven’t ever seen before!

Official Specs and Features of the Muyshondt Aeon Mk III Aluminum Flashlight

Unfortunately, the page for aluminum appears to be dead.  But here’s titanium and copper!


There are a number of versions of the Aeon.  First of all, this is the third (at least) revision – Mk III.  I’m not trying to cover revisions 1 and 2 here.  Those are twisties.  In the current version, there are three metals:  titanium, copper, and aluminum (seen here).

Among those three metals, there are two finishes each.  Titanium has “turned” and “Darkwell.”  Copper has “polished” and “relic.”  Aluminum has “midnight black” and “indigo blue” (seen here.)


Both of the aluminum options of the Aeon (Deep Indigo, seen here, and Midnight Black) go for a price of $295.  The other metals cost more.  Both titanium and copper are $495.

Short Review of the Muyshondt Aeon Mk III Aluminum Flashlight

Broadly speaking, I do love this little light.  There are a few things I don’t like about it, but overall, the light is a winner for me.  I don’t like the mid-mode PWM (it’s fairly bad).  I don’t like primary-only cells.  I do like the Nichia 219b, but I don’t like that the whole marketing scheme doesn’t include necessary information like the emitter.  I also really don’t like the price of $295.  More on all this stuff later.

Muyshondt Aeon Mk III Aluminum Flashlight Long Review

The Big Table

Muyshondt Aeon Mk III Aluminum Flashlight
Emitter: Nichia 219b
Price in USD at publication time: $295.00
Cell: 1xCR2
High Runtime Graph Medium Runtime Graph
Switch Type: Mechanical
On-Board Charging? No
Claimed Lumens (lm) 160
Measured Lumens (at 30s) 160 (100% of claim)^
Candela per Lumen 8.8
Claimed Throw (m)
Candela (Calculated) in cd (at 30s) 112lux @ 3.317m = 1232cd
Throw (Calculated) (m) 70.2
Claimed CCT
Measured CCT Range (K) 4300-4500 Kelvin
Item provided for review by: Me
All my Muyshondt reviews!

^ Measurement disclaimer:  I am an amateur flashlight reviewer.  I don’t have $10,000 or even $1,000 worth of testing equipment.  I test output and such in PVC tubes!!  Please consider claims within 10% of what I measure to be perfectly reasonable (accurate, even).

What’s Included

  • Muyshondt Aeon Mk III Aluminum flashlight
  • Muyshondt MPC-CR2L “Power Cell” CR2 cell
  • Muyshondt branded carry pouch
  • Paperwork

With my package was also purchased the box of cells seen above.  But this is a separate ($18) purchase.

Package and Manual

The branding is really incredible here….  If you’re into it you’ll like it.  If you’re not into it, you’ll just think “why.”

I’m into it.  It’s a very “Atlas Shrugged” feel.  Completely over the top.

This card seen below is actually letterpress.

The seal of quality – again over the top, but it’s something you don’t see out of much more expensive brands.  At $295, I expect this level of packaging and documentation; this is the standard.

The Power Cell box has similar levels of branding.

Build Quality and Disassembly

Aeon Mk III … from here on out I’ll just call it “Aeon” since that’s how Muyshondt lists it.  The engine gets the Mk III designation, but it seems that the light itself is just called “Aeon.”

The Aeon is “just an aluminum light.”  It has a simple user interface (3 modes, no trickery).  A simple reverse clicky, and some nice finishing touches.

muyshondt aeon iii aluminum headstanding

The finish is important – the blue anodizing is very nice and in my copy has held up nicely.  You can see above that the head has some teardrops, which is a “traditional flashlight feature.”  A sort of a nice touch, especially since it’s the head that will be removed to swap cells.  Thus, the teardrops are functional, providing grip.

muyshondt aeon iii aluminum emitter

Here you can see the emitter.  You may know right off hand what this is, and I strongly suspected.  It looks like a Nichia 219b, but there’s a possibility something else is hiding in there.  More on that later.

muyshondt aeon iii aluminum tail switch

The pocket clip astounds me.  There’s nothing else like this available on any other light, as far as I know.  I bet there’s some very special point to all these bends… but in the end, it just looks cool (or “weird” – either you buy in, or you don’t).

muyshondt aeon iii aluminum pocket clip

The switch sits nicely under the edge of the tailcap.

muyshondt aeon iii aluminum switch detail

Knurling on the body seen below is in an area that I really don’t need it.  I would rather have this knurling (which is good knurling, by the way), on the head where I need to grip to separate the parts.

muyshondt aeon iii aluminum tail

The pocket clip is held in place with only screws.

muyshondt aeon iii aluminum pocket clip screws

Another small thing about this light… I feel like the branding on the body and clip is upside down.  Yes, the light will tailstand (technically) but more often than not I place the light on a surface in this orientation (head down).  And when place this way, the branding is all upside down.

muyshondt aeon iii aluminum pocket clip mouth

muyshondt aeon iii aluminum pocket clip profile


muyshondt aeon iii aluminum profile

Another small asterisk is that the bezel is flush – no light escapes when headstanding.  Undoubtedly, adding this would add size.

Also one more point on the head.  Remember, the head is what gets removed for cell swaps.  But the bezel is also removable.  So when unscrewing the head, you have to be cognizant that the bezel may also be removed.  You’ll likely not have to pay any special care about it, but just don’t get crazy and accidentally remove the bezel instead of the head, for cell swaps.

muyshondt aeon iii aluminum head teardrops

It’s also possible to unscrew the tailcap.  This would allow maintenance on (or replacement of) the reverse clicky switch.

muyshondt aeon iii aluminum lanyard hole

The threads on the head end are unanodized, triangle cut, and smooth enough.

muyshondt aeon iii aluminum threads on head

The tail end has a spring, but the head has only a short button.  I am unsure how the driver is placed into the light, but I didn’t see a means for unscrewing it.

muyshondt aeon iii aluminum tail spring

muyshondt aeon iii aluminum threads

muyshondt aeon iii aluminum head off

muyshondt aeon iii aluminum head off cell installed

As stated above, the bezel is removable.  There’s a possibility the threads had some locking compound (there was a small amount of debris after removal), but I really think the bezel is just “tightened appropriately” from the factory, and generally stays put (ie you aren’t likely to accidentally remove it when attempting to remove the head.)

This o-ring sits in a groove on the reflector.

muyshondt aeon iii aluminum bezel removed reflector and oring

And finally, the emitter.  Now there’s no longer any question that this is a Nichia 219b.

I will note here that the mcpcb shown in this image is not secured to that shelf.  There does not seem to be any thermal compound between the two.  Maybe it’s not the worst thing, since probably the reflector is designed to press the mcpcb into the shelf.  But still…

For $300, I’d prefer a much cleaner inside.  There looks to even be flux residue, but the solder joints themselves look ok.  Also, I do not know why there are three wires here.  I am sure one of them is not a thermal sensor (more on that later) but… well I’m open to suggestions.  The reverse clicky is a mechanical switch and so doesn’t require power normally so…  no idea.

muyshondt aeon iii aluminum bezel removed nichia 219b

Here’s some disassembly of the tailcap.  I don’t really recommend this unless you also want to remove the pocket clip.  T6 Torx for that.

muyshondt aeon iii aluminum tailswitch disassembly

muyshondt aeon iii aluminum on

muyshondt aeon iii aluminum headstand while on

muyshondt aeon iii aluminum laying on side

Hope you’ll forgive an artsy photo….

muyshondt aeon iii aluminum art photo

Here are some other CR2 cell lights.  The Nitecore Sens Mini, and the Folomov EDC C2.

Size and Comps

If you know anything about Muyshondt, you know there will not be any official dimensions listed on their site.  (Frustrating.)

So my measurements are as follows:

Length: 61.81mm
Diameter: 17.81mm
Diameter with clip: 21.82mm

I weigh it at 34g with cell.

If a light will headstand, I’ll show it here (usually the third photo).  If a light will tailstand, I’ll show that here, too (usually the fourth photo).

Here’s the test light with the venerable Convoy S2+.  Mine’s a custom “baked” edition Nichia 219b triple.  A very nice 18650 light.

And here’s the light beside my custom engraved TorchLAB BOSS 35, an 18350 light.  I reviewed the aluminum version of that light in both 35 and 70 formats.

muyshondt aeon iii aluminum beside torchlab boss 35

Beside the BOSS 35 really drives home to me how tiny the Aeon is.  Photos (of the light alone) don’t really convey properly how small it is.

Below is another of the Aeons – A Mk II (or I, I’m not really sure) twisty version.

Regarding the switch from Mk [earlier] to Mk III – I really feel like going from twisty to clicky is deserving of a whole new name of light.  That is, I don’t feel like this reverse clicky Aeon is really an Aeon.  In my mind Aeons are twisty.  Of course, that’s just like, my opinion man.

Retention and Carry

Firstly I’ll mention this carry pouch that no one ever will use.

muyshondt aeon iii aluminum carry pouch

With that out of the way, we can turn our attention to the other means of carrying for the Aeon.  It’s this very bent screwed-in pocket clip.

muyshondt aeon iii aluminum pocket clip

As I said above, I’m not sure what the point of all the bends is, but I bet they’re relevant to something.  They serve the purpose well enough.  The mouth allows easy attachment to a pocket, and the clip is deep enough that the light sits nicely in the pocket.

muyshondt aeon iii aluminum pocket clip

Also, note regarding the branding being upside down – when clipped in a pocket, the “M” is a “W” (aka “upside-down”).

muyshondt aeon iii aluminum pocket clip profile

These screws look like Hex, but I used a T6 Torx to screw them back in after removal.  The screws go only into the thin (~1mm) metal of the tail end of the Aeon, and do not have nuts backing them for added backup.  Over time this clip will likely become loose, and you’ll need to give them a tighten.

muyshondt aeon iii aluminum pocket clip screws

The clip is not reversible and is bezel down only, so the Aeon is not suitable as a hatlight.

Power and Runtime

As stated above, the Aeon runs on a single cell.  I hate to call it an “unusual” cell (I suppose it’s used often enough in cameras and the like) but it’s definitely unusual in flashlights.

These cells are 3V, and the versions from Muyshondt are button-top cells.

muyshondt aeon iii aluminum cr2 cell

The cells maintain the aesthetic of the whole brand, which I appreciate.

muyshondt aeon iii aluminum cr2 cell

Standard CR2 cells will work in this light with no problems.

The cell is installed in the usual way – positive terminal toward the head.

muyshondt aeon iii aluminum cr2 cell installed

Here are a couple of runtimes.  The second one really murdered my excel at over 32 hours….  In neither case do we see low voltage protection, nor would we really expect it – these are disposable cells.  So it doesn’t matter if they get over-discharged.  Just dispose of them when they’re expired.  Disposables aren’t ideal, this is true, but in a light this small and of this variety, maybe it’s not that surprising (or that big of a deal).  I would only consider this a backup light anyway, so in some regards, a primary cell (which will have a longer shelf life) is better.

On to the runtimes.  I ran both of these tests uncooled, without giving it too much thought.  Turns out even at a low 160 lumens, the Aeon gets hot.  I really did not expect this, and it’s something for you to be aware of.  The peak of 64 degrees C would really be uncomfortable to hold.  Also, note the ending voltage – 0.61V.  Really the Aeon gets all of the power out of these CR2 cells!

muyshondt aeon iii aluminum runtime graph high

Output on Medium is both less and more remarkable.  More remarkable because the output remains nearly constant over the whole runtime.  Less remarkable because the output does not in fact meet my criteria for “well regulated” – important because the claim is that the Aeon “efficiently maintains constant output throughout the life of the Power Cell.”

Don’t sleep on the fact that the graph below is in hours – I almost never make this chart an hourly timescale, but at 33 hours….

muyshondt aeon iii aluminum runtime graph medium

Modes and Currents

Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens Tailcap Amps
High 160 160 0.65
Medium 15 15 0.05
Low 1 ~ 0.02

Pulse Width Modulation

At my normal timescale, you might not think there’s anything to note here.  But there’s visible pulse width modulation at least on Medium.

So I expanded the timescale from my usual (and usually good enough) 50us to 1ms.  This shows PWM on medium, but only medium.


For reference, here’s a baseline shot, with all the room lights off and almost nothing hitting the sensor.  And here’s the worst PWM light I have ever owned.  Also one of the very first lights I ordered directly from China!

User Interface and Operation

Muyshondt has a reverse mechanical clicky in the Aeon.  It’s a nice switch.  Fairly easy to access around the protruding tailcap, and with a nice big rubber cover.

muyshondt aeon iii aluminum tailswitch

The tailcap has two bits that will allow tailstanding, but also two big gaps which allow good access to the switch.

muyshondt aeon iii aluminum tailswitch profile

I like reverse clicky switches, and also really like mechanical switches.  As stated above, the tailcap can be removed, allowing access for switch maintenance.  This is the only reason you’d ever remove the tailcap – it’s hard to get back on (especially hard without removing the pocket clip.)

muyshondt aeon iii aluminum tailswitch disassembly

muyshondt aeon iii aluminum tailswitch disassembly

muyshondt aeon iii aluminum tailswitch disassembly

The user interface is dead simple.  No hidden modes or strobes or whatever.

Here’s a UI table!

State Action Result
Off Click On (Low – no mode memory) (yay!)
On Tap Mode advance (LMH direction)
On Click Off

Notably, there is no mode memory – the light always starts in Low.  I love that!  There are also no strobes, which I’m pleased about.  The strobe on this light would be a little bit out of place.

LED and Beam

Muyshondt doesn’t disclose what emitter is used in the Aeon.  The reflector is lightly orange peeled.

muyshondt aeon iii aluminum emitter

The bezel can be unscrewed readily, however, so we can just check for ourselves.  (I don’t think we should have to check for ourselves, though.)

This o-ring sits in a groove on the reflector.

muyshondt aeon iii aluminum bezel removed reflector and oring

And finally, the emitter.  Now there’s no longer any question that this is a Nichia 219b.  The emitter temperature isn’t stated anywhere.

muyshondt aeon iii aluminum bezel removed nichia 219b

muyshondt aeon iii aluminum emitter on

LED Color Report (CRI and CCT)

Around 4300K to 4500K means this is neutral to warm CCT.  It’s also above 90 in the color rendering department, meaning it’s High CRI.  A great output.


These beamshots are always with the following settings:  f8, ISO100, 0.3s shutter, and manual 5000K exposure.

Tint vs BLF-348 ( 219b version) (affiliate link)

I keep the test flashlight on the left, and the BLF-348 reference flashlight on the right.

I compare everything to the 219b BLF-348 because it’s inexpensive and has the best tint!


What I like

  • Size
  • Finish is great – the Indigo Blue really pops.
  • Super simple user interface
  • Output claims per mode are very accurate
  • Uses primary cells and not rechargeables
  • Nichia 219b is my favorite!

What I don’t like

  • Bad PWM on medium
  • Marketing over description of the light (emitter is never specified)
  • Uses primary cells and not rechargeables
  • No thermal compound between mcpcb and shelf
  • The cost of $295 is…extreme.


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2 thoughts on “Muyshondt Aeon Mk III Aluminum Flashlight Review”

  1. Nice review! I’ve been curious about these, but the CR2 primary only and the crazy price have kept me from seriously considering it.

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