3.75” overall. Water resistant. Impact resistant. Strobe. FLEX rear switch model. High switch mounted on light, low switch included. Fits full size handguns with rails and most existing light bearing holsters. Ambidextrous operation. Safe off feature. Key kit included to fit a broad range of weapons. 1000 max lumens with 1.5 hour runtime. Requires (2) CR123A batteries (included). Aluminum construction. Color: Black. Boxed with hanging tab.