2015 Fenix LD41 XM-L2 U2 960 Lumens LED Flashlight -Including a Bonus Lumentac(TM) Keychain Light - Use 4x AA Updated Bright 960 lumens with Cree XM-L2 U2 LED and reaches 328 yards 4 brightness levels plus strobe and SoS functions, all easily accessible Use commonly available 4x AA Batteries (Ni-MH or Alkaline) Dual tail cap switches provide quick switching between four brightness levels and flashing modes. Bundle also includes a bright 25 lumens Lumentac(TM) Keychain Light