Fenix PD30 Flashlight LED blasts a max 257 lumens (2.5 hrs runtime) on turbo and 10 lumens (126 hrs runtime) on low selected by simple twist of the lights head Includes 4 lighting modes and 2 strobe modes Tactical push button tail cap switch provides momentary operation when pushed half way Body Size: 4.5" (Length) x 1" (Diameter); 3 ounces; Waterproof to IPX-8 Standard Powered by two 3V CR123A lithium battery