The Streamlight ProTac 1L-1AA is a versatile, ultra-compact tactical light designed for high-performance everyday carry. Featuring multi-fuel capability, it accepts a single CR123A lithium battery for maximum output (350 lumens) or a standard AA battery when convenience is a priority. The light offers three user-selectable programs to suit diverse tactical needs and lighting preferences. Coyote Tan Aluminum construction, OAL 4.25, Head Diameter 0.95, Weight 2.40 oz, Waterproof, modes Constant / Momentary. It is built with shock-proof LED technology and an impact-resistant Borofloat glass lens. This comprehensive kit includes both battery types, a heavy-duty pocket clip, and a protective nylon holster for secure transport.