These Surge Protectors and Power Strips are all made to run on foreign 220-240 Voltage. This means they cannot operate here in the USA. The only difference between a Surge Protector and a Power Strip is the fact that Power Strips do not have any Surge Protection feature built-in. So, in other words, a Power Strip is a device that simply gives you more Outlets to use, while a Surge Protector does that as well but also provides protection to your electronics from any fluctuations in power that may come from the wall.