Product Features: Varifocal & Zoom (External Adjustable) Weatherproof Outdoor IR Camera, 4-9mm varifocal zoom lens & mounting bracket included, 48 IR LEDs, IR distance: 40-50m Product Info: Model No.: TT-WLSO52CVI Image Sensor: Color 1/3 SONY SUPER HAD CCD DSP Resolution: 520 TV Lines Pixels: NTSC: 811(H )× 508(V) PAL: 795(H )× 596(V) TV System: PAL/NTSC Sync System: Internal Synchronization Min. Illumination: 0.1lux/F1.2; ( 0 Lux with IR on) Infrared Distance: 40-50 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; PAL=1/50-1/100, 000 seconds IR-LED: 48 Pcs Lens: 3.5-8mm or 4-9mm varifocal zoom lens Power Supply: DC12V 500 mA Dimension: 158mm (L) *85mm (W) *95mm (H)] Operation temp: -10 to 50 centigrade degree Storage temp: -20 to 60 centigrade degree.