- Features a Cree XR-E P4 LED emitter - Unique sliding zoomable focusable convex glass lens- Zooms from throw 1X to flood 2000X beam (variable beam spot)- Powered by 3*AAA 1.2V/1.5V batteries (4.5V maximum total voltage input)- Single mode tail cap clicky switch- Special glass reflector optics and lens- Circuit current output: 650mA~700mA (this information is for those who wants to mod the light).*When using the throw 1X mode the beam spot looks a bit square-ish because the Cree emitter is a squared chip. This is a designed feature not a defect. The flood 2000X mode features a typical looking rounded beam spot (see beam shots).