Malkoff M31

Yes! An M3#L variant!

Muhahahah!

Um...can we go ahead and sign up for email notification on these now? :huh:

-Trevor
 
Yes its the same, its 3.3V max. been covered several times.

That's cool. Meaning it has been optimized for 2xAA. Good.

I have realized that 2xAA is much more practical than 3xAA.
I have had that 3xAA body from FM laying around but never really EDC'ed it everywhere. Neat concept but not the most practical, thus I welcome 2xAA.

More about that 2xAA body?
 
I have been wanting a single AA hi/lo of this quality for ten years now. It is a shame the M31 won't run well on one AA as that shoots down another hopeful solution.

I just want a simple light and I cannot believe that there are not any like this.
 
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I wish it would regulate on one AA also. I like the idea of being able to use the inexpensive and ubiquitous AA. 2 X AA, however, is just too long for my tastes.
 
Re: Malkoff M31 vs. Dereelight, Nailbender, and Thrunite

Indeed, I was going to put an M31 in my outsized FiveMega 1xAA keyring light, which is currently equipped with a 0.9-4.2V Dereelight XP-G. This changes things. I may replace the Dereelight with a NailBender XR-E, in neutral white, with Nailbender's 8- or 40-degree optic and low-voltage driver. At heart, I'm a flood lover; I would lean toward the 40. But a 1.6V AA cell just won't deliver enough lumens to spread over 40 degrees, so I may try the 8; after all, I also carry a 2AA Malkoff M30WF, which is plenty floody (30 degrees) and plenty bright. One 30-degree flood, one 8-degree spot would cover a lot of bases.

Too bad; I prefer 1-level lights, but the low-voltage offerings from Thrunite and Nailbender are all 3-level. Dereelight makes my current module in single-level, but their 0.9-4.2V high-output XP-G (1.5A) is available only in 3-level and you don't get a choice of tint. Thrunite's 1.5A XP-G drop-in is available in single-mode, but neither it nor the 3-mode version is regulated below 2.7V.

Maybe I should just buy a thin-head AA like a Quark in neutral-white and call it a day...
 
Re: Malkoff M31 vs. Dereelight, Nailbender, and Thrunite

Indeed, I was going to put an M31 in my outsized FiveMega 1xAA keyring light, which is currently equipped with a 0.9-4.2V Dereelight XP-G. This changes things. I may replace the Dereelight with a NailBender XR-E, in neutral white, with Nailbender's 8- or 40-degree optic and low-voltage driver. At heart, I'm a flood lover; I would lean toward the 40. But a 1.6V AA cell just won't deliver enough lumens to spread over 40 degrees, so I may try the 8; after all, I also carry a 2AA Malkoff M30WF, which is plenty floody (30 degrees) and plenty bright. One 30-degree flood, one 8-degree spot would cover a lot of bases.

Too bad; I prefer 1-level lights, but the low-voltage offerings from Thrunite and Nailbender are all 3-level. Dereelight makes my current module in single-level, but their 0.9-4.2V high-output XP-G (1.5A) is available only in 3-level and you don't get a choice of tint. Thrunite's 1.5A XP-G drop-in is available in single-mode, but neither it nor the 3-mode version is regulated below 2.7V.

Maybe I should just buy a thin-head AA like a Quark in neutral-white and call it a day...




The low voltage P60 drivers from the rest of them give partial power with 2 AA cells.

The M31 will/might give full power with 1 or 2 AA cells😗
 
Re: Malkoff M31 vs. Dereelight, Nailbender, and Thrunite

The low voltage P60 drivers from the rest of them give partial power with 2 AA cells.

The M31 will/might give full power with 1 or 2 AA cells😗
We now have the answer: full regulated output is reached at 1.8 volts...just north of the output provided by a nickel-zinc cell.

This finding ratifies my purchase, 2 hours ago, of a 1AA Romisen single-mode flashlight in neutral white, for $21 shipped. If all goes as hoped, the Romisen will dislodge the 1AA Fivemega/Dereelight 1.2A XR-G from my keychain. The Dereelight has 3 modes, and I'm a single-mode guy.
 
Re: Malkoff M31 vs. Dereelight, Nailbender, and Thrunite

We now have the answer: full regulated output is reached at 1.8 volts...just north of the output provided by a nickel-zinc cell.

This finding ratifies my purchase, 2 hours ago, of a 1AA Romisen single-mode flashlight in neutral white, for $21 shipped. If all goes as hoped, the Romisen will dislodge the 1AA Fivemega/Dereelight 1.2A XR-G from my keychain. The Dereelight has 3 modes, and I'm a single-mode guy.

RC-G2 II ?
 
Re: Malkoff M31 vs. Dereelight, Nailbender, and Thrunite

RC-G2 II ?

Whoa guys, this is a Malkoff M31 thread, and the thread title should not be changing with various posts. Gets confusing, and off topic. Starting your own thread would be a good solution. 🙂

Bill
 
I have a personal M30 that I use with 2 NiZn AA cells. They are 1.8V fresh off the charger and I get this:
UBH Body_____________M30 XR-E Q5___________2 AA NiZn ____________189.2 ______ 1 sec________________________
________________3.5v Input = 1A at the tail_________________________183.1_______30 sec_______________________
__________________________Arctic Silver 5______________________________________ 182.3_______1 min______________________
______________I swapped to a old school twistie__________________________________179.2_______2 min________________________
______________________________________________________________________________179.2_______3 min________________________



I am looking forward to the M31 because I bet it will hit at least 200 OTF with 2 NiMH AA cell and likely more with 2 NiZn cells.

The max voltage input is 3.3V, but my NiZn AA cells topped off are 3.5V input. I wonder if these will sag enough to not fry the M31????


bigC
 
BC, I would guess you would see some mild overdrive, if that. 1A draw from cells should pull it down below 3.3 before it gets to LED.

Bill
 
BC, I would guess you would see some mild overdrive, if that. 1A draw from cells should pull it down below 3.3 before it gets to LED.

Bill


Bill,

You are likely right. I was thinking of using my E-series clickies on these UBH bodies too. They produce way way more resistance then twisties.

I would not want to try the VME twistie AA hosts, which are a steal at the advertised price😱 My thinking is they produce zero(nearly) resistance.
 
The new M31 NOT 18650 compatible :mecry:

Glad I didn't sell off my M30 !!



Malkoff description:

The input voltage is 0.8 to 3.3 volts. It requires 1.8v for full output. The output is approximately 230 measured out the front lumens at 1.8-3.3v and 150 lumens at 1.2v. The current draw is 1 Amp 3 volts and 1.4 Amps at 2.4 volts. It is ideal for use with one CR123 primary, two 1.5v AA lithiums, or two rechargeable AA NIMH batteries. DO NOT USE A SINGLE LITHIUM RECHARGEABLE CELL. YOU WILL DESTOY IT!!!
 
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