The latest iteration of Vortex's SPARC series of red dots now harnesses the power of the sun for up to 150,000 hours of battery life, powering a reliable tactical machine ready to help you protect what matters most. Vortex's smartest red dot to date, the SPARC SOLAR's Auto D-TEC automatically switches from solar to battery power when the sun can't power the dot to your choice of 10 daytime illumination settings and two night-vision compatible settings. Motion activation capable, the SPARC is always ready, and its daylight bright, 2 MOA dot provides a clear, precise point of aim. Near and far, night and day, the SPARC SOLAR means you're always ready. Mfg: Vortex Optics