Fenix E25 Flashlight, Black Max 187 lumen output from 2 common AA batteries (included) Three brightness levels include Turbo-187 Lumens (2hr 20min), Medium-90 lumens (6hr 15min), Low-27 lumens (26hr) Convenient side switch on the flashlight's body IPX-8 Waterproof, 2 meters for 30 minutes Supported by limited lifetime guarantee from Fenix Lighting, US