The Tripp Lite HT850UPS Home Theater UPS Backup System is a reliable and efficient solution for protecting your home entertainment equipment during power outages. With a voltage compatibility of 750 VA and 120 V, this battery backup system provides a maximum power of 120W and a maximum wattage of 450W, ensuring that your devices have plenty of power for 3 hours. Designed by Tripp Lite, a trusted brand in power protection, this system is the perfect choice for keeping your home theater setup running smoothly during unexpected power interruptions.