Hikvision ColorVu technology provides 24/7 vivid colorful images with f/1.0 advanced lenses, high performance sensors, and friendly lighting. The f/1.0 super-aperture collects more light to produce brighter images. Advanced sensor technology can vastly improve the utilization of available light. In zero-light scenarios, built-in,warm supplemental lighting works to guarantee colorful images.The cameras can be outfitted with a 2.8 mm,4 mm, or 6 mm lens to cover a variety of needs.