Low light capability of a camera is determined by its CCD size, lux rating & AGC (automatic gain control). Lower the lux, more the camera is sensitive to light and higher the AGC, better under low light with minimum loss of resolution. High AGC is only possible with 1/2" CCD cameras. 1/2" CCD cameras are also extremely sensitive to infrared illuminators. Even under total darkness, 1/2" CCD cameras can see the room like a day if infrared illuminators are used together. The camera comes with a regulated power supply and connects to any TV, VCR or a DVR.