A CCTV system is only as reliable as the power behind it. Many buyers spend most of their time comparing cameras, lenses, storage capacity, or software features, yet the power supply often receives far less attention than it deserves. From our perspective, this is one of the most common reasons why otherwise good security monitoring systems later suffer from unstable performance, image loss, camera rebooting, nighttime failure, or shortened equipment life. A proper Power supply does much more than simply turn a camera on. It helps maintain voltage stability, supports long cable runs, protects devices from electrical issues, and contributes directly to the long-term reliability of the full monitoring system.