The SPARC SOLAR harnesses the power of the sun for up to 150,000 hours of battery life. Auto D-TEC technology automatically switches from solar to battery power when the sun cant power the dot to your choice of 10 daytime illumination settings and two night-vision compatible settings. Its daylight bright, 2 MOA dot delivers a clear, precise point of aim, and is motion activation capable for worry-free activation in high stress situations.SpecificationsSKU VT-SPC-404Dot Colour Bright RedDot Size 2 MOAEye Relief UnlimitedAdjustment Graduation 1 MOATravel Per Rotation 42 MOAMax Elevation Adjustment 100 MOAMax Windage Adjustment 100 MOAParallax Setting Parallax FreeLenth 2.6 inchesWeight 5.9 ouncesOptical FeaturesDaylight Bright Illuminated Center Dot Daylight bright, illuminated center dot aids in faster center-point acquisition in bright daylight conditions.Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.Unlimited Eye Relief Non-critical eye relief for rapid target acquisition.Night-Vision Compatibility The lowest 2 settings are night-vision compatible.Parallax Free All red dot and holographic sights will exhibit some small amount of parallax. Matching current industry practice, this small amount would be considered \