It depends on how much power you actually need. Mostly, a "dim" Fenix E0 or ARC AAA will just do fine.
I have the following 1AAA lights and love them all.
- ARC AAA (I have several, in red, green and white)
- Maglite Solitaire with 3mm led kit
- Fenix E0
- Fenix E1
- Fenix L0P (not my first recommendation)
- Peak Matterhorn 1led HP
- Peak Baltic 50cp
Best regulation is with the Solitaire led, Fenix E0 and E1. and maybe the Baltic. This might be an important consideration when using alkalines and constant power is prefered. With NiMH, regulation is, in a way, provided by the battery itself.
Prices vary between the cheap (a real bargain!) Fenix E0 and the Peak Baltic.
If I wasn't a flashaholic, I would order the E0 and the E1 and never look back.
But I am a flashaholic, so I bought them all.
Kind rergards,
Joris
PS: I would like to see a Fenix L0P with FLAT regulation and one output level of around 30 lumens. Please...