1/4" Built-in Vari-focal lens color CCD DSP Camera, 350 TV lines, high sensitivity, minimum illumination of 0.4 lux with F1.4 lens, built-in vari-focal type auto iris lens, F=1.4 to 1.8, f=2.8 to 5.8mm, Multi-spot photometry BLC, dual power supply 12 V DC or 24 V AC.