This outdoor color camera with 20 IR LEDs is an incredibly well designed and durable surveillance device that works in pitch-black conditions. The 1/3 Sony Super HAD CCD chip set offers an amazing 540 TV lines of resolution that provides you with the best possible image. With the new split-glass technology, you no longer have to worry about the reflection that is caused by some IR cameras. Adding this camera to your home or business couldn't be easier: You can connect the camera to your TV, VCR or DVR in a matter of seconds. This camera comes standard with a female BNC connector, so if your TV, VCR or DVR does not support BNC, you will need to purchase a cable with an adapter to make the connection possible.External Adjustment for Focus and Zoom This perfectly designed camera gives you the ability to change the focus externally after you've completed your installation. This is made possible with the two external varifocal adjustment rings. The built-in f=4-9mm varifocal lens gives you the ability to change the magnification of a scene. The most beneficial thing about this feature is the fact that once the camera is installed, you can change your viewing distances without having to take down and apart the unit itself.