This 2 AAA LED Mini-TAC light has a deep parabolic reflector creating a tight, long throw beam for distance illumination. With a IP-X4 water resistant design, it is constructed from aircraft-grade 6061-T6 aluminum with a Type II hard anodized finish. The tail switch provides momentary or constant-on functionality. The light comes with a removable pocket clip. The MT-100 is powered by two included AAA batteries. NightStick®, MT-100, Mini-TAC Light, Series: MT, LED Bulb, 100 Lumens, Long/Narrow Beam, 50000 hr Average Life, AAA Battery, 2 Batteries, Black, 6061-T6 Aluminum Housing Material, IPX4 Enclosure