Fenix LD41 is a high-performance outdoor flashlight with a wide range of applications. It employs the unique dual tail cap switches to provide quick switching between four brightness levels and two flashing modes D and a momentary-on function. The elongated all-metal housing, containing four readily-available AA batteries with sufficient power, makes it comfortable to hold. Featuring constant brightness and waterproofing to IPX-8 standards, LD41 can be a good partner in various outdoor conditions and in emergencies. Features -Uses Cree XM-L2 (U2) LED with a lifespan of 50,000 hours -Uses four AA (Ni-MH, Alkaline ) batteries -175mm (Length) x 40mm (Diameter) -198-gram weight (excluding batteries) -Digitally regulated output maintains constant brightness -Reverse polarity protection guards against improper battery installation -Low-voltage reminder indicates when battery replacement is needed -Anti-roll, slip-resistant body design -Tactical tail cap switch with momentary-on function -Tail mode switch, one click for brightness selection -Made of durable aircraft-grade aluminum -Premium Type III hard-anodized anti-abrasive finish -Toughened ultra-clear glass lens with anti-reflective coating