This year I bought a Lightkeeper Pro, which did a wonderful job repairing several strands of lights on my pre-lit Christmas tree. We were watching TV last night and suddenly one strand (and I think it was one that had been repaired) suddenly blazed significantly brighter. The bulbs were very hot. I turned it off for a bit, and when I turned it back on, that strand of lights was out. I'm hoping someone has a bit more knowledge of electrical circuits and explain this. I'm hesitant to try the repair again - and the heat put out by those bulbs makes me a little nervous about fire.
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