Fenix LD41 XM-L2 U2 680 Lumen LED Tactical Flashlight with Four EdisonBright AA batteries New version Cree XM-L2 U2; 680 lumens and 295 yards throw Use commonly available 4x AA Batteries (Ni-MH or Alkaline) 4 brightness levels plus strobe and SoS functions, all easily accessible Unique dual tail cap switches to provide quick switching between four brightness levels and two flashing modes  and a momentary-on function. Bundled with Four EdisonBright AA Alkaline batteries