EdisonBright Fenix PD35 TAC 1000 Lumen CREE LED Tactical Flashlight and Fenix AR102 pressure switch with Two CR123A Lithium Batteries 1000 Lumen max utilizing Cree XP-L (V5) 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 This bundle includes Fenix AR102 pressure switch with Two EdisonBright CR123A Lithium Batteries.