5.5'' overall. Impact resistant. Clip. Rechargeable. Strobe. IPX8 waterproof submersible up to 2 meters under water. CREE XHP50 White LED. Modes: Turbo (2550 lumens, 2.02h runtime); High (1135 lumens, 2.11h runtime); Medium (270 lumens, 5.7h runtime); Low (71 lumens, 20.9h runtime); Firefly (0.64 lumen, 50 day runtime). 197m beam distance. Magnetic charging and Micro USB charging ports. Low battery indicator. Striking bezel. Spare O-rings. USB magnetic cable. Engineered plastic holster. Requires (1) 18650 battery (included), or (2) CR123A batteries (not included). Aluminum construction. Color: Black. Boxed.