Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Some Defects

I bought 6 white light sets & various color sets. No problems with the color sets. One white light set malfunctioned after only a few uses where about 12" of light failed to illuminate. I was able to return that set without a problem. About 2 months later another white set malfunctioned in the same way. Due to Amazon's 30 day return policy I wasn't able to return that set & have to present a warranty claim to the manufacturer.Celebrations Indoor/Outdoor Rope Lights 18', Clear