Cutting Hydro costs, Safe Backup Power, Surge Protection, Financing. What equipment should be protected and why? Regarding the why question: When you experience loss of power or fluctuating power to your equipment, problems arise! You can experience data corruption, component failure, shortening of equipment life, poor performance, and loss of information. In addition, you will need to reprogram settings, or the lengthy time to re-input data or re-install software. These problems can be annoying, expensive, and a waste of your time. Regarding the what equipment question: This pertains to Computers, TVs, PVRs, DVDs, Routers, Switches, Modems, Printers, Phone Systems, new Computerized Refrigerators, Projectors, Sound-Systems, internet, and Fax Machines.