This non-rechargeable Mini-TAC light use an 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-120 is powered by two included AA batteries.