12 November 2013 2:56 pm GMTUpdated: 12 November 2013 3:10 pm GMT
Photo by: Colin West McDonald/CNET
/ Caption by: Megan Wollerton
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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.