Infrared illuminators emit light in the infrared spectrum, making their rays (and illuminating effect) invisible to the human eye. In simple terms, IR illuminators emit light that cannot be seen with the naked eyes. As a result of this, infrared or IR illuminators have a wide range of functions; from providing light for night vision security cameras to serving as a covert flashlight for hunting.
Night-vision cameras are a combination of CCTV cameras and infrared illuminators. They are used for covert surveillance, and in a bid to improve security at your home, you may find yourself in the market for a night-vision camera. Before making a decision, however, here are some points to keep in mind.