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 and a removable wrist lanyard.  The MT-110 is powered by one included AA battery.