The NSP Adjustable Beam Flashlight uses an LED that work in conjunction with a TIR lens to create a usable beam distance of up to 100 meters. This compact flashlight features both momentary and constant-on functionality and has a rotating bezel ring that allows the user to adjust the focus of the beam. The housing and tail-cap are made from aircraft-grade 6061-T6 aluminum and have a Type II hard anodized finish.