2.38'' overall. Rechargeable. Water resistant. Impact resistant. Strobe. White and green LEDs. Modes: Wide angle high: (460 lumens, 2h 30m runtime, 50m beam distance); Long distance (315 lumens, 4h runtime, 115m beam distance); Long distance/wide angle (560 lumens, 2h runtime, 105m beam distance). Electronic lock-out mode. Last Light feature. USB charging cable. AURIC camo head strap. Requires (3) AAA batteries (included), or (1) Lithium battery (included). Polymer construction. Clam packed.