The NSP-410 Adjustable Beam Flashlight uses an LED rated at 115 lumens that works in conjunction with a TIR lens to create a usable beam distance of 72 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. Power comes from a single AA battery (included).