The TLR-6 Ultra-Compact Tactical Weapon Light for railed pistol is designed to securely attach to Smith & Wesson M&P Shield. Use this light to allow for identification of potential threats before taking action. Features ambidextrous push-button switch for easy operation; batteries can be replaced while light remains mounted on gun; runs one hour. Includes two CR1/3N lithium batteries. Features a 10 minute auto shut-off to conserve batteries.