3″ overall. Water resistant. Impact resistant. 650 lumen white LED. Red laser light. Ambidextrous rear white light trigger and side laser switch. Attaches securely to MIL-STD-1913 and Glock-style rails. 130m beam distance. 1 hour, 30 minute runtime. Requires (1) 16340 battery (included), or (1) CR123A battery (not included). Aluminum construction. Color: Black. Boxed with hanging tab.