Shine the Light: Super bright performance with 600 Lumens, 11,485 Candela, a beam distance of 205 Meters and a run time of 2 Hours and 45 Minutes on high mode Multi-Fuel Flexibility: Uses two non-rechargeable batteries (included) or an optional Streamlight SL-B26 USB rechargeable battery (sold separately) for versatile power options in any environment and situation TEN-TAP Programmable Switch with Strobe: Choose from High/Strobe/Low, High only, or Low/High modes, the integrated strobe function provides quick disorientation or signaling capability when needed Rugged Design with Secure Grip and Clip: Durable high-impact nylon polymer body with Rocky Stipple texture for a sure, non-slip grip; includes a removable multi-position pocket clip for hands-free carry Built Streamlight Tough: Meets 500 °F heat resistance requirement of NFPA 1971-8.6; features O-ring-sealed glass lens, IPX7 waterproof rating, and 3-Meter impact resistance for proven durability in demanding environments and situations