Set of 3 was sold on September 20th. delivered and is now on 17.12. I used the first bulb in the living room floor lamp at low wattage (100 watts) until it burned out. I switched to medium (200w) until last night when it started making weird noises and stopped working completely. It's less than 3 months. I took another one and just plugged it into my lamp and it only works on a 100 watt setup. A three-way pear that only works out of the box at a low freshness level. I haven't tried returning any of the pears to Sylvania, so I can't comment on that. Also, I don't give stars for energy efficiency because I'm not able to measure it.
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