Would anyone here buy an extra EXTRA low output drop in?

I figure with as popular as the LL m61's are, there might even be a market for a step Lower still. I think I would give up my LLw for an LLL in whatever cct, if the increase in runtime was as much again.

Say ~2 lumens, in a Mag drop in for the D cells, yes..

I would buy it.

I have recently come to realize that the ONLY setting I use on my HDS 140 is 0.07 lm. I would love the same brightness (dimness?) in a P60 format.

My .04 on my Thrunite TI is my favorite. Although sometimes its still too much. That would be great in a P60


Alex

I would if it was Malkoff

+

The only drop-in I know of with an true Low output (without any PWM)
is a rare Dereelight 4SD,..it had an extra level = approx 1.5 lm Low~Low

Have one in 5A tint

The run time would be ridiculously long, if the price was right, I would buy one to play with. But it would have to be about $20 or less for me. So I am not sure if it is possible. At the moment I don't have a use case, but that is not to say that I won't find one later.

purelite said:

I would if it was Malkoff

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Has anyone approached Gene about producing an M61WLLLLLLLL ?

Why not just run a normal incan bulb

I have owned the M61ll, it was fantastic. A little too bright even. If it were 20 lumen with a 24hr runtime that would have been ideal.

jamesmtl514 said:

If it were 20 lumen with a 24hr runtime that would have been ideal.

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No, no - still FAR too bright.

I think (hope) this thread is a wish list for a P60 drop in with a ridiculously long runtime and output of <1 lm. (0.05 lm would be ideal. For me.)

I e-mailed Gene a couple of years back regarding doing a M60LLL, he said that it would be no problem. It sounds like he's pretty amenable to custom work.

Okay guys...

M61wLLLLLLLL

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Well yeah something like that could be useful too, maybe a night light with zero chance of user error blinding. But by "extra EXTRA low", my idea was merely extending the regular, L (low), & LL (extra low) concept by ONE more L. LLL, extra extra low.

I figured based on the performance of the LL, an LLL could have something like 50 lumens for 20+ hours of regulation. And the LLL might actually have a legitimate possibility of being made at some point, & remain a single mode. Just one more step. Though I keep forgetting how much everyone likes either absolute maximum or minimal output. I'm just thinking all around general use flashlight with super long runtime.

Kestrel said:

I e-mailed Gene a couple of years back regarding doing a M60LLL, he said that it would be no problem. It sounds like he's pretty amenable to custom work.

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Nice, thanks for the tip. It is a real possibility then.

How about a GITD tailcap?

shane45_1911 said:

Has anyone approached Gene about producing an M61WLLLLLLLL ?

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One thought here:

I have an M61WL and I can run it on 1xcr123 and a spacer and then it's dimmer than with 2 cells, maybe like 40 lumens.
I have only tried it for a short time, I don't know how runtime is or how brightness would change by time.

Anyway, has anybody tried an M61LL / M61WLL with only 1 cell?
That might give an M61LLL!

If it works, is there any problems / risks anybody can see with this setup?

I've long considered making a simple low output p60 using just a resistor. Perhaps its time to dust off that project.

^Gurthang said:

I've long considered making a simple low output p60 using just a resistor. Perhaps its time to dust off that project.

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That sounds interesting but wouldn't you lose a lot of electrical energy that is turned to heat at the resistor?

GunnarGG said:

Anyway, has anybody tried an M61LL / M61WLL with only 1 cell? That might give an M61LLL!
If it works, is there any problems / risks anybody can see with this setup?

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Yes, that has been posted in a few threads over the past couple of years w/ the M60 series. A single CR123 lithium primary works pretty well.

For all the folks who want an M61LLLLL, try 2xNiMH (not alkaline) AA's with the M61 or M61LL in a 3xCR123 body and post back with the results.

JoVo said:

That sounds interesting but wouldn't you lose a lot of electrical energy that is turned to heat at the resistor?

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No, because the overall current is greatly decreased due to the high-resistance circuit. Furthermore, the power dissipated in the resistor is dictated by the following equation: P = I^2 x R.

The SureFire L1, L2, A2, and the McC2S tailcap has been doing this exact thing for many years now. I have a 120-ohm McC2S tailcap (~5 lumens or so from a Malkoff M60) and the runtime from 1x18650 is simply incredible.

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A different route entirely is the following thread:
*Beamshots-Post #36*Build yer own "Battery Vampire" with a P60
Remove the bulb from a SureFire P60 incan lamp assembly and replace it with a 5mm LED (w/ your choice of colors). It does a couple of lumens from 2xAA alkaline or 1xCR123 for 50-100 hours of runtime or so (@ ~25mA direct-drive, give-or-take). I've also tried 2xNiMH and it might be ~0.01 lumens. :shrug:

Kestrel said:

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Lots of these sorts of things are in the CPF archives, folks. :ironic:

+

What about making a host that has a variable control ring built into the body, one that goes down to say .1 lm
...then, all you need is a 1-mode drop-in ~ :devil:

It's not impossible


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I would! I'd like to see Gene make an M61XXX (or whatever) @ approx. 30lms that would last maybe 40 - 50 hrs. @ 100%, if that is possible. THE perfect BOB/ emergency light!

My .02 FWIW YMMV