i have a surge protection device and it worked okay in the uk...here though the power can go on and off 3 or 4 times in an hour. as soon as it goes off a genny kicks in and then when it comes back on it stops. we have a rainy season and fantastic thunder storms that frequently kick out cable, phones and pc's.  the laptops okay cos it has a built in battery. as you can gather the electrical systems fluctuate more than the the price of oil. it's pretty archaic to say the least but you learn to live with it lol. the first time i tried a ups i never made any difference lol and there pretty cheap here too.

billy