Marine LED Aluminum High Output Flashlight Case material:Durable aircraft-grade aluminum; Water resistant; CREE LED Bulb; 900 Lumens Max - Output Varies based on battery voltage; Telescoping to focus light beam from flood to spot.; Requires 3 AAA Batteries (Not Included); High, Medium, low, Strobe and S.O.S. Mode; Shock Resistant; Lamp Life of 100,000 Hours; Switch:Tail Cap;