Image sensors: 1/4-inch Sharp 1/4-inch Sony 1/3-inch Sharp 1/3-inch Sony Signal system: PAL and NTSC Sensing area: 3.6 x 2.7mm Effective pixels: PAL: 500 x 582 pixels NTSC: 510 x 492 pixels Horizontal resolution: 420 to 480TVL Lens mount: 3.6, 6, 8 and 12mm (selectable) Built-in back light compensation Electronic shutter: PAL: 1/50 to 1/100,000 seconds NTSC: 1/60 to 1/100,000 seconds S/N ratio: greater than 48dB Minimum illumination: 0 lux/1.2 Automatic tracking white balance Video output: 1.0Vp-p, 75Ω Infrared wavelength: 850nm LED: 18 pieces Infrared lamp irradiation distance: 20m Illumination for infrared turn on: greater than 3 lux Voltage: 12V DC Dimensions: 95 x 80mm