This non-rechargeable Mini-TAC light use a CREE® LED and has 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 included AAA batteries.