I just recieved my P1 from Fenix, incredibly small,extremely bright light. It runs on one C123 cell. It would blow an Arc AAA away. I also picked up Brinkman 3W LED from Target for my Dad. Very nice light running on 3 AAA. Good throw with a nice smooth flood. Dorcy also makes a decent 1W LED running 3 AAA. Have a nice day :-)

My Walmart has the D-cell maglites in LED form.
They also have the LEDs to convert the old ones...
They are right next to the third party ones...
I picked up one and converted an old 2D-cell, and it is MUCH brighter than the incandescent bulb...

Are there also LED upgrades for AAA Mag-Lite's?

LED bulbs for mini AAA maglite I have one of these, very bright, works fine.

Nite Ize L.E.D. Upgrade:

Well, for only $4.92 at Wally World, this more than tripled the brightness and area coverage of my AA Mini Maglite, so I would say it was worth it. It DOES make it more of a FLOOD light instead of a SPOT light though, which is okay for me. Now only if these other claims prove to be true:

*Extends battery life 4X longer
*10 year lamp life (100,000 hours continous use)
*Dependable: Shock resistant!