The DC 12V 830ma AC 9v 15va Camera Power Wall Supply is a dual voltage transformer designed for powering CCTV cameras. With a voltage output of 12V, this transformer is suitable for a variety of surveillance applications. The amseco brand ensures quality and reliability, and the compact design makes it easy to install in a home surveillance setup. Made in China, this transformer is a practical and efficient power source for enhancing home security with CCTV cameras. I recently had bought out the inventory of an electronics/Direct TV business that closed. These were part of it.