... , singal noise ratio is more than 48dB, electornic shutter 1/50(1/60)~1/100,000sec.*NTSC/PAL system ,Internal/ synchronization,DC12V 1000mA working ... .01LuxcameraIR 2.8,3.6,6 optionableBacklight compensationAuto /electronic shutter1/50(1/60)~1/100,000seccolour balanceAuto /Signal Noise Ratio>48dbGamma Correction>0 ...