From the manufacturerKey Features:Versatile Protection for Sensitive ElectronicsAdvanced Automatic Voltage RegulationEMI/RFI Line Noise Filtering
The LC1800 provides filtering for clean AC power for consistent power levels an and protection and performance enhancement for computers, A/V components and all electronics. It features built-in automatic voltage regulation to protect sensitive equipment from the harmful effects of brownouts and overvoltages, plus a 1440-joule surge suppression rating to protect against catastrophic surge damage. The LC1800 also filters out disruptive line noise that can cause performance problems and corrupt or erase data. With its 1800-watt output rating and six outlets, the LC1800 provides ample capacity for multiple items of connected equipment.
Protects your valuable connected equipment from the harmful effects of voltage fluctuations, the LC1800 features built-in automatic voltage regulation (AVR) with three levels of voltage stabilization to provide a targeted response to over voltages, under voltages and severe brownouts. Can correct brownouts as low as 87V and over voltages up to 140V back to safe, nominal 120V power. AVR protection prevents equipment damage, data loss and power-related performance problems.

Various electromagnetic and radio sources can cause disruptive interference on the AC line. This EMI/RFI line noise is a common cause of incremental hardware damage, data corruption and audio/video performance problems. Incorporates technology that filters out disruptive line noise, preventing it from affecting your equipment or corrupting data.