Effectively protect your electronics with the Tripp Lite SK3-0 3-Outlet Surge Protector. It blocks spikes and line noise of up to 660 joules. This Tripp Lite power supply plugs directly into your outlet and gives you three plugs to work with. It comes with diagnostic lights that let you know when you are grounded and protected. Add it to the outlets of your home and protect against electrical spikes and irregularities.