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Understanding IR Illuminiation

Infrared Illumination or IR Illumination is designed to assist CCTV cameras in recording better video at night.


The human eye can detect visible light between 400 nanometers or nm, and 700nm. Below 400nm is Ultra Violet light and above 700nm is Infra-Red light.

Visible light to the human eye

Infrared Light is electromagnetical radiation that is not visible to the human eye, yet is visible to a CCTV camera above 700nm with the IR cut filter pulled out of the way.

Infrar-red light spectrum

While the light is not visible to the human eye, like a flash light or headlight, it does glow red at the 850nm level when you look directly at the illuminator. We have a video here of how the 850nm IR's look at night, which is similar to a tail light on a car; What Does An Infrared Illuminator Look Like At Night.

Lets see what it does to video.

The Human eye is not strong enough to see anything at night.

What a human sees at night

A typical Day/Night camera can compensate for night time recording when they pull the IR cut filter out of the way, however, it still is weak and does not produce good night time video surveillance.

A typical day/night camera at night

Here is a pix of a Day/Night camera that has been enhanced by an IR Illuminator. See how well it enhances the video? A side benefit is you can achieve up to 3x smaller files using an Illuminator. This will not only drop you're bandwidth issues, it will make for smaller files; a double whammy!

A day/night camera with IR Illumination

The difference is like night and day. If you need some guidance on selecting your IR Illuminators, simply fill out the form below and we will get back to you with the correct choices. You can also view our IR Illuminators here.



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Do not buy any infrared illuminator if your camera is not an IR camera. It has to have a removable IR-Cut filter that slides out of the way at night for the camera to recognize the IR.

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