The extension cable is ten feet. Extend power from your camera's regular DC power supply up to 20 additional feet. We suggest that no more than 2 extension cords be used in succession.
Add the Transpad (may we also suggest, below) to weatherproof the cable connections. The waterproof tar pad allows you to waterproof all outdoor cable connections by covering the connector in the malleable, waterproof tar pad.
This cable does not work with the AMBIENTCAMHD.