Model GL-788 Pickup device 1/3 Sony Number of signal PAL:512(H)?82(V) NTSC:512(H)?92(V) System of signal NTSC/PAL Horizontal resolution 420TV Minium illumination 0Lux/F1.2 Lens mount 6mm Backlight compensation Auto Electronic shutter 1/50(1/60)~1/100,000sec White balance Auto S/N ratio >48dB Gamma correction >0.45 Operation temperature -20~50 Sync.system Internal Video output ≤1.0v p-p /75 Ω Power supply DC12V, 1000mA　 Dimensions(mm) 78(D)*130(L)　 Weight(g) 2kg　 IR LEDs 48 IR View Distance 35-40m Waterproof Rate Ip67