2.5” overall. Clip. Water resistant. Impact resistant. Rechargeable. High Performance CW LED. TIR optic lens. Side switch. 166m beam distance. Magnetic charging cable. Modes: Turbo (1200-300 lumens, 1.5+75m runtime); High (300 lumens, 95m runtime); Medium (60 lumens, 7.5h runtime); Low (12 lumens, 33h runtime); Moon (0.5 lumen, 20 day runtime). Includes carry pouch. Color: Christmas green. Requires (1) 16340 battery (included). Aluminum construction. Boxed.