New Headlamp, Fire fighter (5AA Battery) NSN #:6230-01-493-7630 Excellent quality, NEW. Voltage-regulated (VR) light which delivers a steady level of illumination for the entire usable life of the batteries. Delivers steady illumination level for eight or more hours. User can select from two pre-set illumination levels to balance need for brightness vs. battery life. Helmet mounting permits hands-free operation. Light has a quick disconnect cord that separates the battery pack from the light shell.