Image Sensor: 1/3 Sony CCD (1/4 Sony CCD, 1/3 Sharp CCD, 1/4 Sharp CCD) Effective Pixels: 510(H)x582(V) 290k / 752(H)x582(V) 430k - PAL Resolution: 420TVL / 480TVL / 540TVL Synchronizing System: Internal Scanning System: 625 Lines, 50 Filed/Sec S/N ratio: More than 46dB (AGC off) Min. Illumination: 0Lux (led on) Ir Leds: 8pcs Visible Distance: 100M Gain Control: Auto White Balance: Auto Gamma Characteristic: Auto r=0.45 Power Source: DC12V, 100mA