The NSP-420 Adjustable Beam Multi-Function Flashlight uses an LED rated at 275 lumens that works in conjunction with a TIR lens to create a usable beam distance of 133 meters. This compact flashlight features momentary or constant-on functionality, user-selectable high, medium, or low-brightness settings, and 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 three AAA batteries (included).