2.75" overall. Rechargeable. Water resistant. Impact resistant. CREE XP-L HD V6 LED. 180m beam distance. Modes: Turbo (1000 lumens, 15m runtime), High (200 lumens, 3h runtime), Mid (65 lumens, 9h 45m runtime), Low (15 lumens, 19h runtime), Ultralow (1 lumen, 70h runtime). Utilizes a total reflective optic lens for uniform and soft light. Micro USB port. Dual side switch design. Intelligent mode memory function. Metal ring pull able to hold 30kg of weight. Requires (1) Lithium battery (included). Aluminum construction. Color: Black. Boxed with hanging tab.