This is a great camera to replace older worn out cameras or to expand your current video security system. The OC1554 camera integrates newer technology to capture quality images. Each camera has 24 Infrared LEDs that provide up to 45-Feet of night vision and uses a CDS sensor as a light sensor to turn on the Infrared LEDs in low light conditions. Unlike most system cameras, these cameras terminate with a BNC connector and can be used in most video surveillance applications. The included 60-Feet cable has factory molded BNC and power connectors on each end and combines the video and power into one cable eliminating the need to run separate cables. In order to reduce the clutter of four separate power supplies and to reduce the impact on the environment, Clover combined four power supplies into one AC adapter to power the cameras. Instead of having to purchase bulky power strips, there is only one plug for all four cameras. The camera enclosure is made of ruggedized steel delivering years of service and the low profile camera mount allows for a more discreet installation. Everything needed to install all four cameras is included in one convenient package. Very easy to install just plug and play but if help is needed just call our friendly technicians and they will be glad to help.