Dimensions: 3.28 Inch x 1.91 Inch x 1.73 Inch. SOS strobe. Rechargeable. Water resistant. Impact resistant. White and red LEDs. Modes: High (600 lumens, 11h runtime); Mid (300 lumens, 16h runtime); Low (100 lumens, 31h runtime); Ultralow (8 lumens, 180h runtime). 130m beam distance. PC plastic rear housing. Stamped aluminum alloy front housing. Skin-friendly widened headband with reflective strips. TrueVision technology. Over 100 degree wide range flood beam. Lockout mode. Dual button interface. Concealed USB-C charging port. Requires (1) 21700 battery (included). Boxed with hanging tab.