6.25" overall. Water resistant. Impact resistant. Clip. Strobe. Modes: High (944 lumens, 3h 15m runtime); Medium (479 lumens, 4h 30m runtime); Low (37 lumens, 29h runtime). 225m beam distance. Self-Programmable. White, red, and green LEDs. USB rechargeable. Requires (1) Lithium battery (included), or (2) CR123A batteries (not included). Aluminum construction. Color: Black. Boxed with hanging tab.