Day and Night for Security Cameras

Infrared is used for most security cameras. Day and night cameras have infrared LEDs that emit infrared light that only the camera can see. When it comes to day/night cameras range is everything. Cheap cameras will have weak LEDs that only emit a short light waves or that may have a lens/detector that can pick-up all of the infrared light being emitted. If you actually would like to see what is happening at night you will need to purchase a high-quality camera. Cameras that you purchase from your local electronics store are usually not of high-quality and will lack the LED strength or camera quality.