Model BS-935CX BS-935BX Pickup device 1/3-inch color Sony CCD Number of pixels PAL:512(H) X 582(V) NTSC:512(H) X 492(V) System of signal PAL/NTSC Horizontal resolution 480TV Lines 450TV Lines Minimum illumination 1.0Lux/F1.2(IR Open) Lens mount C/CS Backlight compensation Auto Electronic shutter 1/50(1/60)~1/100,000sec AGC Auto White balance Auto S/N Ratio > 48dB Gamma correction > 0.45 Operation temperature -20degree~50degree Sync system Internal Video output 1.0v p-p /75 ohm Power consumption DC12V,<= 200mA    AC24V,<= 120mA Dimension(mm) 100(L) x 73(W) x 52(H) Weight(g) 370(g)