This 2 AAA Mini-TAC light uses a deep parabolic reflector creating a tight” long-throw beam for distance illumination. With a 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 AAA batteries (included).