5.6 overall. Clip. Tailcap switch. Water resistant. Impact resistant. Modes: High (1000 lumens, 1.25h runtime), Low (5 lumens, 36h runtime). 200m beam distance. Dual output LED. TIR lens. Crenellated Strike Bezel. Requires (2) CR123A batteries (included). Aluminum construction. Color: Black. Clam packed.