Hey guys, I have a basic question about UPS back up systems. Do they all protect devices connected to it from brownouts? The place where I live during school has very bad power and I am sure there are plenty of brownouts that occur, and I want to make sure to protect my TV and other devices during such events. I have a giftcard for Best Buy and was thinking about purchasing the cheapest UPS system they have which I believe is about $50. Would UPS systems from Best Buy around that price protect from brownouts?