12VDC Power Supply
The 12V DC power supply is one of the common power standards, the other being 24VAC power. These power supplies take electricity from a wall outlet and convert it to a low voltage for the security cameras.
When connecting a camera to a power source, make sure the power supply is compatible to the camera. If you plug in a 24V power supply to a 12V camera, the power supply could fry the security camera.