The NSR-9746XL is a full-size rechargeable multi-function Xtreme Lumens™ flashlight that uses a CREE® LED rated at 650 lumens working in conjunction with a high-efficiency deep parabolic reflector to create a usable beam of light rated at 450 meters. The body switch provides momentary or constant-on functionality, a set of user-selectable high, medium or low brightness setting as well as a disorienting strobe. Power comes from a rechargeable Lithium-ion battery.