Surefire Batteries, factory 123A Lithium batteries, premium quality at value price, stock up extra for your favorite illumination tool, package of 12 batteries. Optimized for use in SureFire flashlights, SureFire Lithium batteries pack a lot of power into a small package. And-unlike alkaline batteries-SureFire High-Performance Lithium Batteries boast a ten-year shelf life, which means they will be ready when you need them, every time. For all SureFire Lithium battery powered lights It replaces or substitutes for the following: CR123 DL123A CR123A K123A EL123A VL123 SF123A CR17345 23-155 2