Fenix TK 20 2 Level Cree LED Flashlight 6 inch length, 6 ounce weight, convenient dual output levels: High Output: 150 Lumens (2 hrs) and General Mode: 45 Lumens (11 Hrs) Will reach over 115 meters (377 FT) using just two 1.5V AA ( Alkaline, Ni-MH) batteries, inexpensive and widely available--NOT INCLUDED Body design is made of durable aircraft-grade aluminum, Type III hard-anodized anti-abrasive finish Waterproof to IPX-8 Standard Virtually indestructible, microprocessor-controlled, CREE light emitting diode (LED) has no filament to burn out or break