Battery Backup Supplies power long enough for equipment to properly shut down when utility power fails. Helps prevent loss of data and minimizes the component stress caused by a hard shutdown. Surge Protection Diverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage. Simulated Sine Wave Output Uses pulse wave modulation to generate a stepped, approximated sine wave to supply cost-effective battery backup power for equipment that does not require sine wave output. GreenPower UPS™ High-Efficiency Design Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and office use. Transformer-Spaced Outlets Accommodates large transformer-based plugs without compromising the access of other outlets.