The Hikvision 4 MP ColorVu Strobe Light and Audible Warning Fixed Bullet Network Camera includes a 6mm lens as well as ColorVu technology and provides 24/7 vivid colorful images with F1.0 advanced lenses and high-performance sensors. F1.0 super-aperture collects more light to produce brighter images. Advanced sensor technology can vastly improve the utilization of available light.