PoliceScannerMan
Flashaholic
2H 30M, still about the same as 2 hours.
Malkoff M31
- Thread starter mfrey
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PoliceScannerMan
Flashaholic
3 hour mark, maybe a lil dimmer. At this point the M31 may be the ultimate vampire!! :thumbsup:
Bullzeyebill
Flashaholic
Check voltage when you remove the cell. I have pulled CR123's below 2 volts in the past (no load).
Bill
PoliceScannerMan
Flashaholic
I will, just call my brother and see if he'll give me back my DMM. :sigh:
3.5 Hour mark, maybe 3 lumens, useable in a dark room.
kyhunter1
Flashlight Enthusiast
From what is posted so far, Im gaining more interest in the M31 series. I would really rather have a M31WLL for the runtime on AA cells. Anybody know if one of these in in the works or not?
etc
Flashlight Enthusiast
Actually this sounds interesting! Didn't know about this body!
On 2AA it's very bright but very thirsty as you can see. But to put into perspective, getting that kind of lumens from one CR123A cells is impressive, and equally impressive from 2 NiMH cells and in that context, 45 minutes from one CR123A and 1:15 or so from 2xAA is very respectable. Seems to be the brightest 2xAA lite I have ever seen.
Re: FiveMega 2xC body with M31 - that should be an interesting experiment but I am committed to the 18650 / CR123A platform and have no real reason to change it.
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PoliceScannerMan
Flashaholic
4H15M, still about 1-2 lumens. From here I'll just post when it dies.
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etc
Flashlight Enthusiast
So you get a long tail that reminds of you Gerber Infinity Ultra with its 3-5 lumens. Might be useful in a TSHTF situation.
PoliceScannerMan
Flashaholic
6H 15M. Light is identical to my Quark Ti AA XPG in moon mode. How long will she go??? :twothumbs
PoliceScannerMan
Flashaholic
7.5 hours the light was as bright as tritium, I concluded the test. 
sgt253
Enlightened
Would anyone know the dimensions of the lens included with the VME head? I was thinking an upgrade might be in order. Thanks in advance.
PoliceScannerMan
Flashaholic
UCL Size: 22.0mm x 1.90mm
sgt253
Enlightened
Outstanding. Thanks PSM. Regards.
Swedpat
Flashlight Enthusiast
Any runtime/brightness test with M31L and alkalines? 
etc
Flashlight Enthusiast
Now that should be interesting.
FrankW438
Newly Enlightened
7.5 hours the light was as bright as tritium, I concluded the test.
You have more patience than I have! Thanks for doing this for us. To summarize, 40 to 45 minutes of regulated output, and then a loooong gradual drop-off? Which brand primary did you use?
I just received my M31 yesterday. Hoping to do some of my own "testing" tonight with a local CPFer.
Thanks again, PSM!
-- Frank
PoliceScannerMan
Flashaholic
Brand new surefire CR123
I'm thinking I want to trade my M31 for a M31L. Anyone intrested, shoot me a PM.
etc
Flashlight Enthusiast
Brand new surefire CR123
I'm thinking I want to trade my M31 for a M31L. Anyone intrested, shoot me a PM.
I think you are going to regret it -- where else can you find such a pocket rocket based on 2AA or 1x123. It the brightest 2AA you can get and the runtime is not bad in the context of other choices. Really, 45 minutes from 1 tiny 123 cell is exceptional.
Just bring lots of spares...
PoliceScannerMan
Flashaholic
Yeah youre right, the M31 is sweeeeeeeeeet. :thumbsup:
