Use indoors or out. See in the dark without using LEDs—built-in intensifier adjusts from 2x-128x. OSD feature is controlled by an internal joystick. Video S/N ratio is more than 50dB. Electronic shutter: 1/60-1/100,000 seconds. Internal, three-axis mount for wall or ceiling makes movement easy. SONY HG-1 with a customized DSP. Dual voltage, 24V AC/12V DC power supply. Miniature color high resolution. 540 lines. .5 Lux, 3.6mm lens.