3.25" overall. Water resistant. Impact resistant. Rechargeable. Strobe. Clip. Lanyard. Cool white LED. Side switch. MCC-1A magnetic USB charging cable. 510m beam distance. Modes: Turbo (1000-300 lumens, 2.5+92m runtime); High (300-60 lumens, 103+18m runtime); Medium (60 lumens, 10h runtime); Low (10 lumens, 60h runtime); Moon (<1 lumen, 50 day runtime). Requires (1) Lithium battery (included). Aluminum construction. Color: Orange.