This article shows how to make a DIY Infrared illuminator to help Night Viewing of Your Camera. The IR Illuminator allows a camera to see in total darkness.
The IR Illuminator is based around our LED SpotLight PCB which holds a total of 24 LEDs on a circular PCB. The board is equipped with 24 special IR LEDs which do all of the work, along with 8 current limiting resistors. This project is very simple to build up, and can be fully assembled by a novice builder in about 30 minutes.
DIY Infrared Illuminator – [Link]