This Ball Gimbal Type Vandal Dome uses The Sony Super High Resolution 540 TVL Super HAD CCD with Digital Day / Night Observation and 36 IR LEDs switched by CDS Sensor at night. Illumination area around 20m externally with a good 4~9mm Varifocal Day / Night Lens to cover most installation requirements. Simple and quick installation Vertically or Horizontally due to unique Ball Gimbal Multi Axis design with 2 screw easy lens Angle and Focus adjustment. IP66 rated for external use. Ideal for the Budget external installation where a high quality, low cost Vandal Dome camera is required.