So, how do you build an IR illuminator that costs less than $10? First, obtain the items in the parts list from an electronic parts source. I suggest eBay as the cheapest source. For a container for the IR illuminator, you can purchase a plastic box at additional cost or repurpose something you have around your house.
PARTS LIST ($10)
1. IR LED Ring – 48 IR LED using 12 VDC
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