3'' overall. Water resistant. Impact resistant. Clip. Rechargeable. White and green LEDs. Lock-on, lock-off switches. Modes: Turbo (360 lumens, 30m runtime), High (150 lumens, 90m runtime), Low (35 lumens, 6h runtime), Green (7 lumens, 18h runtime). Includes USB charging cable. Requires (1) Lithium battery (included). Clam packed. May not ship to Australia. May not ship Post Office.