Product Features:  Varifocal and Zoom Lens (External Adjustable) Weatherproof Outdoor IR CCTV Camera Product Info:   Model TT-WLSO32CVI-N Image Sensor Color 1/3 SONY SUPER HAD CCD Resolution 420 TV Lines Pixels PAL=500(H)x582(V)?F NTSC=512(H)x492(V) TV System PAL/NTSC Sync System Internal Synchronization Min. Illumination 0.5lux/F1.2?F( 0 Lux with IR on) Infrared Distance 45 m S/N Ratio More than 48dB(AGC off) Ray Features 0.45 Video Output 1 Vp-p75 ohm Electronic Shutter NTSC=1/60-1/100,000 seconds?F PAL=1/50-1/100,000 seconds IR-LED 48 Pcs Lens 4-9mm or 3.5-8mm varifocal zoom lens Power Supply DC12V 500 mA Weight 1200g Operation temp -10 to 50 centigrade degree Storage temp -20 to 60 centigrade degree