Product DescriptionFeatures: Adopt 1/4 inch SONY SUPER HAD CCD With AGC, ATW, BLC functions 22X optical zoom, f=3.9-85.8mm Illumination is 0lux when IR led is on Lens is separated from IR led completely With high quality IR Led, IR working distance is 130 meters Advantages: Easy to release heat, waterproof, light-reflecting-proof, dustproof Offer outdoor shield to proof the sunshine and water, can work under a very gloomy condition.