Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 100% failure (two out of two)

I really liked these bulbs--while they lasted. We probably owned them for about a year before both bulbs failed. And they were in bedside lamps, so we only used them an hour or two per day.The first one has been flickering for months at the highest setting. And recently, the second one just quit: We turned it off at night, and the next morning it wouldn't turn on.