Monster`s HTFS 500 Excels in Protecting Your High Definition Video Investment Like personal computers, high definition video components can be easily damaged from the surges and spikes common with AC power today. The problem is even worse if you live in an area plagued by lightning or power blackouts. Extremely high voltages can travel through the AC power line, seriously damaging or even destroying your flat screen TV. The Monster HTFS 500 features 2775 joules of Metal Oxide Varistor (MOV) protection. Exclusive Dual Mode Plus(TM) Protection Circuitry for Ultimate Surge Protection MOVs are not enough to protect your equipment on their own. Unlike ordinary surge protectors, the HTFS 500`s exclusive Dual Mode Plus protection circuitry automatically disconnects all of your connected equipment if you`re hit by a big surge. While some other surge protectors leave equipment connected and vulnerable after such a hit, Monster`s HTFS 500 disconnects them. In addition, if your system takes a h...