Intensified alum. Alloy housing to enhance cooling effect Built-in icr Megapixels board lens, standard 3.6mm (optional 6.0¢p, 8.0¢p) 3dnr/2dnr Agc, white balance control and back light compensation functions (optional) Wdr auto Using dc 12v power source, ir function activate, project distance approx. 20m (single cable transmission without ir function) 1pc/box, 20pc/2.72'