27 June 2012 8:37 pm BSTUpdated: 12 July 2013 8:14 pm BST
Photo by: Josh Miller/CNET
/ Caption by: Jessica Dolcourt, Eric Franklin, Lynn La
Conversation powered by Livefyre
How well do you know your surge protector?
Whether you're looking to add more outlets, or want to add a layer of protection between your gear and the outside world, here's what you need to know.