1/3" SONY Exview HAD CCD TV system ：PAL Pixels ：PAL=752(H)x582(V) Resolution ：550 TV Lines Sync System Internal Synchronization Min.Illuminance ：0.2Lux/ (f:1.2),0 lux Night Infrared On Infrared Distance ：18m-20m IR Switch Status Illuminance less than 10Lux CDS On IR Switch Control CDS Automatic Control S/N Ratio ：More than 50dB(AGC off) Ray Features ：0.45 Video Output ：1 Vp-p75 ohm Electronic Shutter Time Automatic ：PAL:1/50-1/100,000 second Lens ：Board lens 3.6 mm /4mm/6mm / 8mm/12mm/14mm Power Supply ：DC 12V 250 mA Weight:Approx 440g Operation temp ：-10 to 50 centigrade degree Storage temp ：20 to 60 centigrade degree