Title: Does what it's supposed to do
Product review: Have both my flat screens and stereo hooked up to two of these units. I'm surprised how often the yellow light comes on (when the voltage varies more than a few points). I'm not sure it cleans up the picture, but it does give peace of mind that when our voltage varies in our lines, which it does often, the high priced A/V equipment isn't affected. Plus all the outlets in the rear make it very efficient to plug things in. Great deal at under a hundred bucks.
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