Fenix LD41 uses 4XAA batteries 520 lumen with a floody light and Uses the Cree XM-L U2 LED
Has Low, Med, high, Turbo, SOS and Strobe. Check out the Quark Pro QP2A-X if you want a smaller light. Has half the power but still very bright and compact. It also uses a Cree XM-L LED.
The XM-L LED...