6.25 overall. Water resistant. Impact resistant. CREE XP LED and IR LED 850nm. Modes: High (860 lumens, 1h 30m runtime), Mid (330 lumens, 2h 30m runtime), Low (140 lumens, 5h 30m runtime), IR (400mw, 5h runtime). 290m beam distance. Patented dual light structure, rotating the head to switch between white and infrared light. Independent tactical remote switch. Quick assembly and disassembly on all standard Picatinny rails. Requires (1) 18650 battery (included), or (2) CR123A batteries (included). Aluminum construction. Color: Black. Boxed.