3.25” overall. Clip. Lanyard. Impact resistant. Water resistant. CREE XP-G2 LED. Four modes: High -14500 (480 lumens, 0.5h), High-AA (150 lumens, 1.1h), Medium (30 lumens, 9h), and Low (1.5 lumens, 100h). 130 meter beam distance. Requires 1 14500 battery (not included) , or 1 AA battery (not included). Aluminum construction. Color: black. Hang packaged.