Reasons I bought a Millermods AAA:
I wanted a torch smaller (thinest) than my L0D CE for my keychain (for in the pocket under my wallet).
I wanted a torch with a minimum 3 hour runtime.
I wanted brightness in the ballpark of an L1P/L0P SE high/L0D CE medium (~30 lumens). I later discovered the L1T v2 RB80 low acceptable (~15 lumens).
The L0D CE I am using for the comparison I bought locally July 2007. I think it has a P4WD emitter (brightness & tint compared to my 1st L0D CE Jan 2007 which I think is a P3WC).
The (Millermods) Arc AAA is the smallest torch using a common battery.
The Millermods AAA is 4 hours at 50mA. 2.5 hours at 75 mA is too low as is my L0D CE at 2 hours.
The Millermods AAA P3 bin is 9 lumens at 50mA. A Q4 bin is roughly 1.5X (based on L0D Q4 vs L0D CE specs) so ~13.5 lumens tolerable.
I also like warmish tints so when Millermods let people who take a Q4 WH to get their lights 1st while he sources higher bin LEDs I jumped (the queue).
Size MillerMods AAA left, L0Dce right:
Beamshot MillerMods AAA low left, L0Dce medium right. My Millermods at 50 mA is only very slightly dimmer than my L0D CE medium, quite acceptable.
Beamshot MillerMods AAA high left, L0Dce high right. I selected the lowest high 3/4W 240 mA for minimum effect to the 3 hour runtime I wanted.