The camera uses near-infrared light emitted by the LEDs. Since it doesn’t have a near-IR filter, it picks up the IR light better than a normal camera does. The LEDs are super bright and the LED ring can throw light about 30 or 40 yards.
Simple Night-Vision Goggles
Build a simple night-vision headset that uses almost invisible near-infrared light to see in pitch-black darkness. No equipment modification is required.