Fenix TK75 2600 Lumen LED Flashlight Max 4000 lumen turbo output from four 18650 batteries (NOT INCLUDED) will throw light over 650 meters Six outputs including Turbo-4000 lumen (1hr 40min), High-1600 lumen (3hr 40min), Mid-600 lumen (11hr 20min), Low-35 lumen (270hr), strobe and SOS Easy to use side dual controls, balanced compact body design IPX-8 Waterproof, 2 meters for 30 minutes Supported by limited lifetime guarantee from Fenix Lighting, US