|| Video resolution :
A network camera that offers megapixel resolution uses a megapixel sensor to deliver an image that contains one million or more pixels. The more pixels a sensor has, the greater the potential it has for capturing finer details and for producing a higher quality image. Cameras with a standardized resolution of 720p or 1,080p. The numbers 720 and 1,080 refer to the horizontal resolution. Therefore, 720p HD camera resolution provides images that are 1,280 x 720 pixels , and 1,080p HD cameras provide 1,920 x 1,080-pixel resolution
Night Vision is the Capability to capture video in low light and no light (0 Lux) areas, Infrared Cameras can capture acceptable video in total darkness and even better quality video in low light. Even a small amount of ambient light helps the overall night vision capability of IR cameras a lot.