3.125"w x 4"d x 2.75"h, deluxe, white, replacement motion sensor, with dualbrite, a patented heath zenith technology that provides energy saving 2 level lighting operating at half power until motion is detected & full power lighting when motion is detected, provides soft accent lighting at dusk, when motion is detected, light automatically switches to full bright lighting for a pre-selected amount of time, 1, 5, or 10 minutes, light will then automatically return to accent mode, 50% power, accent lighting will begin at dusk & can be pre-selected to stay on for 3 hours, 6 hours, or until dawn, up to 100' detection range, selectable light timer, test, 1 minute, 5 minute, or 20 minute, adjustable detection sensitivity, 240 degrees, 2 year warranty.