I collected these when I was a kid. They are halogen floodlight bulbs, possibly 300 watt, and I believe they were only used for one night, for a school event. For some reason, they were destroyed just from that one night of use. Their normal lifespan should be around 2000 hours or so. I'm not sure what happened to them exactly. At first I thought they might've been run at too high a voltage, but another possibility is they had some kind of material defect in them. These would normally be trash in their present condition, but I suppose they're sort of a memory from childhood now.
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