Versatile Illumination in a Compact Form: The SureFire M340C-PRO Mini Scout Light Pro features a virtually indestructible LED that produces 500 lumens of bright light. Its hybrid beam pattern provides ample reach and surround light for close- to longer-range operations. The Low-Profile Mount allows users to optimize the light's position relative to the rail and other attached accessories. SureFire 123A Lithium Batteries (4 Pack): Power high-drain devices with confidence using these high-performance 3V lithium batteries. With a 10-year shelf life, leak-resistant design, and reliable output, theyre a dependable energy source for flashlights, cameras, and other essential electronics.