Night Color Technology is simply a marketing term. Do not base a camera on that. Go by the specs and the reviews of cameras that people post here with videos.
Do not go by reviews elsewhere talking about how great the image looks at night because I can make just about any camera look like daytime at midnight by jacking with settings. Motion at night is what is important so that it is not a blur or ghosting.
And if you do not have any light available for the camera, it will suck as it doesn't have IR. Reality is almost every camera with IR will have those little red beads of eyes that you will see when looking straight on, but most people do not see or notice them, just like most do not even notice the cameras.
With that said, it is a great camera with a great sensor, but do not think that it will work in complete darkness and give you usable video. It even states it needs ambient light like you would see in a parking lot:
Dahua Night Color Technology cameras are ideal for applications with at least 1 lux of ambient or artificial light, including parking lots, schools, urban streets and museums.