This camera is an affordable economic day night color audio video security camera. Built-in 36 infrared LEDs are used for night vision. Infrared LEDs with sensors see in darkness. Capture color pictures by day and black and white images at night. Connect easily with DVR or TV for monitoring. RCA for audio and video, 2.1mm center positive plug for power. Camera selection tips: A CMOS image sensor is sensitive to light but is not sensitive to color; entry level CMOS camera does not have accurate color reproduction. Low light sensitivity is more important for security surveillance applications. If color reproduction is more important to you, please select a CCD bullet camera without IR. Notes: Near-infrared light, is beyond what the human eye can see, but most camera sensors can detect it, color camera in daylight without an IR-cut filter will therefore see a significant amount of infrared light resulting in strange colors. With a Mechanical IR-Cut filter switch, during the day this camera uses an IR-cut filter. IR light is filtered out so that it does not distort the colors of images as the human eye sees them. When the camera is in night (black and white) mode, built in IR illuminator active, the IR-cut filter is removed, allowing the camera detect infrared light reflect from the object.