| Φ5:20pcs IR Led, IP66 Weatherproof standard, easy to install Built-in 3.6mm/6mm/8mm Fix Lens Image Sensor: 1/3" SONY CCD Horizontal Resolution: 420TVL Minimum Illumination: 0 Lux (Infrared Lamps Turn ON) Infrared Wavelength: 850nm Infrared Lamps Irradiation Distance: 15m Infrared Lamps Turn ON: >3Lux Sensing Area: 3.6mm*2.7mm Signal System: PAL/NTSC Effective PixelsPAL: 500(H)*582(V) NTSC: 510(H)*492(V) Shutter Speed: Auto: 1/50(1/60)~1/100000s S/N Ratio: more than 48Db (AGC OFF) White Balance: Auto Tracking White Balance |