Fenix TK09 2016 900 Lumen Cree LED tactical flashlight, ALG-01 Weapon mount, AER-02 remote switch with 2 X EdisonBright CR123A Lithium Batteries bundle 900 lumen Utilizing Cree XP-L HI LED with a lifespan of 50,000 hours Uses one 18650 rechargeable Li-ion battery or two 3V CR123A Lithium batteries Tactical tail switch with momentary-on function of 900 lumens output 130mm (Length) x 25.4mm (Body Diameter) x 34mm(Head Diameter) Bundle includes ALG-01 weapon mount, AER-02 pressure switch and Two EdisonBright CR123A lithium batteries and holster