Nightstick Adjustable Beam Flashlight 1 AA Black. This compact flashlight features both momentary and constant-on functionality and has a rotating bezel ring that allows the user to adjust the focus of the beam. The housing and tail-cap are made from aircraft-grade 6061-T6 aluminum and have a Type III hard anodized finish. Power comes from a single AA battery (included). Specifications for Nightstick Adjustable Beam Flashlight 115 Lumens TIR Lens 1 AA: Manufacturer: Nightstick Flashlight Application: Emergency Color: Black Finish: Anodized Fabric/Material: 6061-T6 Aluminum Light Output: 115 lumens Battery Life: 50000 hours Bulb Type: CREE LED Beam Distance: 72 m Diameter: 1 in Bezel Diameter: 1 in Lens Material: TIR Length: 4.25 in Weight: 3.3 oz Water Resistance Level: IPX-7 Additional Features: Non-Slip Grip Beam distance of 72 meters Textured tail-switch Adjustable flashlight beam Momentary or constant-on Battery Type: AA Included Accessories: 1 AA Battery Features of Nightstick Adjustable Beam Flashlight 115 Lumens TIR Lens 1 AA: 115 Lumens 1 Hour run-time Waterproof Aircraft-grade 6061-T6 aluminum housing 1 AA battery (included) Included Accessories: 1 AA Battery Package Contents: Nightstick Adjustable Beam Flashlight 115 Lumens TIR Lens 1 AA Nightstick NSP-410: Adjustable Beam Flashlight 1 AA Black