5.15 inch overall. SOS strobe. Strobe. Water resistant. Impact resistant. Lanyard. Clip. Pack weight: 3.65oz. CREE XP-L HD V6 LED. Modes: Turbo (1000 lumens, 1h runtime), High (400 lumens, 3h 45m runtime), Mid (190 lumens, 7h 30m runtime), Low (50 lumens, 25h runtime), Ultra low (1 lumen, 700h runtime). 184m beam distance. 90 degree adjustable head. Side switch control. Power indicator light. Polarity reverse protection. Mineral glass with anti-reflective coating. Magnetic base and tail stand capability. Requires (2) CR123A batteries (not included), or (1) 18650 battery (not included). Black nylon belt sheath. Aluminum construction. Color: Black. Boxed with hanging tab.