Globe 7725201 Home Surge Protector Set, Combo Pack, with 4-Ft Cord Features patented Shock Guard Technology. Its internal barrier prevents accidental shock by blocking out foreign objects and fingers With 4' of cord and right angle plugs you can position these sleek surge protectors where you need them so they are always close by. Joule rating indicates amount of electrical energy the surge protector can absorb. Globe's 3Star 3 outlet surge protector has a joule rating of 250 Easily and safely converts 1 outlet into 3 while preventing against accidental shock.