5-7 lumen P60 module with 100 hour runtime in 3P

I have a neat Surefire "3P" FiveMega I want to use with some ultra-low lumen module, focusing on longest runtime possible from a single 123 cell.'

Think Gerber Infinity and you get the idea.

A quick search of things available reveals that everything is at least 30 lumens, with most a lot higher than that.

Check with Mountain Electronics. With all the various parts they have, they should be able to put together a custom P60 to meet your needs, at least as far as the lumens go. Have no idea about the 100 hours part.

Too bad SF discontinued that light.

Someone used to make a 5mm P60...

Could the lowest M61 available in the market fit his need?
With the extended line of L, i have lost count. Haha

bykfixer said:

Too bad SF discontinued that light.

Click to expand...

Well FiveMega re-continued it. You can also use a Malkoff head and a Surefire E1 body + tailcap. Actually it makes more sense than what I have but might be more expensive.

It is a small device that disappears in your pocket but not so small that's difficult to hold like Gerber Infinity (IMO).

DellSuperman said:

Could the lowest M61 available in the market fit his need?
With the extended line of L, i have lost count. Haha

Click to expand...

The lowest they have available is 4 Ls. Down to about 30 lumens.
I need what appears to be a 5L or even 6L module. As in M61LLLLLL(Either 15 or 7 lumens if we keep halfing the lumens with each L)

Doesn't make sense to have a heat sink in that configuration, just adds unneeded weight I suppose.

etc said:

....ultra-low lumen module, focusing on longest runtime possible from a single 123 cell....

Click to expand...

PoliceScannerMan said:

Someone used to make a 5mm P60...

Click to expand...

I use a 5mm amber LED in a FM bipin reflector. Direct drive probably puts out a couple of lumens for ... a really long time

etc said:

....
Doesn't make sense to have a heat sink in that configuration, just adds unneeded weight I suppose.

Click to expand...

Yeah, agreed, the Cryos bezel is probably unnecessary ... :laughing:

Looks cool.

Thanks !

Here's AOW's thread, may or may not be the original but the one that I found...

http://www.candlepowerforums.com/vb...-yer-own-quot-Battery-Vampire-quot-with-a-P60

scout24 said:

Here's AOW's thread, may or may not be the original but the one that I found...

http://www.candlepowerforums.com/vb...-yer-own-quot-Battery-Vampire-quot-with-a-P60

Click to expand...

Not sure why your link doesn't work in Tapatalk @scout24 ... but this repost should work ....

https://www.candlepowerforums.com/threads/237648

Thank you! No idea... Works on my Android phone, and my tablet. Who knows???

Seen it happen many times, but I've no idea why either ....

scout24 said:

Here's AOW's thread, may or may not be the original but the one that I found...

http://www.candlepowerforums.com/vb...-yer-own-quot-Battery-Vampire-quot-with-a-P60

Click to expand...

Thanks for finding this thread, I lost track of it. I remember it in 2009, what a blast from the past. In fact I had that exact P60 module and it was a battery vampire. The tint wasn't that good (but not terrible either).
I cannot believe I lost the module because usually I don't lose anything.

I am really wanting to do this for my e1e, great idea. Any ideas on current 5mm specs and what to look for ?

Maybe a Malkoff M31 with the lowest output, and a resistor mod in the tailcap spring?
That would lower output quite a bit, and extend runtime greatly.
I modded a G2 tailcap with a 1/4watt, 22ohm resistor once and lowered the KX4 head's 120 lumen output to around 40 lumens, guesstimate. Runtime was fantastic.