Sure, the WB-200-1WT is the smallest of the WattBox bunch, but what it lacks in size it makes up for in performance. Sharing many of the same technologies like fireproof MOVs and noise filtration, it's perfectly suited for single outlet protection of TVs, projectors, subwoofers, and just about anything else that needs simple, effective power conditioning. Sensitive A/V equipment is negatively impacted by noisy appliances and other electronics that create interference on the AC line. All WattBox power conditioners feature noise filtration that cleans up this "dirty power" to deliver the purest A/V experience possible. By lowering the audio noise floor and reducing hum, you hear exactly what was intended. Video performance can see an improvement too - with reduced power-related artifacts on HD displays. Surges can come from a variety of sources - from fluctuations at the power company to catastrophic events such as lightning. This excess energy can damage your connected equipment if not properly protected. The Joule rating is a measure of a surge protector's ability to "clamp" this excess energy down to a safe level - the higher the rating, the more protection your equipment has. MOVs, or Metal Oxide Varistors, are surge protection components that dissipate excess energy in the form of heat. Under extreme conditions, lower quality MOVs can get so hot they catch on fire! WattBox power conditioners feature ceramic-encased MOVs to protect not only your system but your home as well. Here's a quick video that demostrates the advantages of fireproof MOV technology. As an added precaution, in the event of a catastrophic spike, a thermal fuse completely disconnects AC power from your system to stop the surge in its tracks before it can get to your connected equipment. All three "legs" of the power (hot, neutral and ground) will disconnect for unsurpassed equipment protection.