I also received a defective bulb (1 out of 3). Not sure if this is a factory QA issue or just rough treatment during shipping. The bulbs are packed in tiny cardboard boxes and wrapped tightly in foam and then just thrown into a much bigger box with some of big plastic air pillows (not sure what they are called). So the little boxes are pretty free to bounce around inside the bigger box. Given the fragility of the bulb's filament, I wouldn't be surprised if this packaging was inadequate.The bulbs fit perfectly into my ceiling fan, but are only a little bit brighter (maybe 20% or so) than the incandescent bulbs that were in there before. I was hoping for a bigger brightness improvement for the price difference.On the plus-side: They dim perfectly through the entire range with the Lutron Maestro dimmer we have installed.
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