SureFire X300U-B High-Output Light: The SureFire X300U-B delivers 1000 lumens with a focused TIR lens beam and this high-output light ensures strong peripheral visibility. Built from tough aerospace aluminum, it features IPX7 waterproofing and a T-slot thumbscrew clamp for a secure fit on Universal and Picatinny rails. SureFire 123A Lithium Batteries (12 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. Waith Universal Battery Tester: Test AA, AAA, C, D, 9V, and button cell batteries with this compact, easy-to-use testerno power required. Designed for quick reads and everyday use, its ideal for households, offices, or toolkits to avoid battery waste and keep electronics running efficiently. Battery Case: Organize & protect your batteries of various size with Durable Case