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Infrared Illuminators -IR Illuminators-
Infrared illuminators are used in areas where the available lighting is not sufficient for clear surveillance. They are generally used with black and white cameras since these cameras have greater sensitivity to infrared light. Color cameras that switch to black and white at night are coupled with IR illuminators for night time surveillance, making them suitable for both day and night viewing.  Infrared illuminators use light emitting diodes, or LEDs, to transmit light. A single LED produces only a small amount of light so several LEDs are used. LEDs can be extremely economical as well as efficient.