surefire 6p

[DRoc]

P61 with an 18650 works well. Not fantastic, but it's a good compromise, I can vouch for this. Just ensure to use a high quality 18650 with good capacity, relatively new. I use an M2 bezel with my setup as P61 lamps are relatively uncommon these days.

 

[Timothybil]

P61 with an 18650 works well. Not fantastic, but it's a good compromise, I can vouch for this. Just ensure to use a high quality 18650 with good capacity, relatively new. I use an M2 bezel with my setup as P61 lamps are relatively uncommon these days.

You can always go to Lumens Factory and get an HO-6 or SHO-6 if you can't find any P61s at a decent price.

 

[DRoc]

You can always go to Lumens Factory and get an HO-6 or SHO-6 if you can't find any P61s at a decent price.

Great advice...I will keep this in mind when my 41 P61's run low. I am not sure if incandescent will even be offered by then...I will probably just start using the 175 P60's I have and run them underdriven!
As for LF, I love them and use them all the time as well. I particularly like the HO4:twothumbs

 

[fivemega]

I will probably just start using the 175 P60's I have and run them underdriven!

If you don't want to underdrive P60 and still keep rechargeable, best choice is 4 NiMH AA(Eneloop)

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For slightly overdriven P60 use 2P/2S primary CR123A

 

[Woods Walker]

But then it's no longer a 6P. Beyond that it looks dang cool!