Power surges and lightning strikes are not the only things that can damage your home electronic equipment. Simply switching appliances on and off can create electrical imbalances that cause cumulative, permanent damage to your computers, peripherals and electronic equipment. Decades of research and power protection development have led Belkin to the release of this Economic Surge Protection series. Using advanced design elements and top-quality construction as well as superior circuitry, the E-Series offers complete protection from power surges, AC contamination and spikes.