Product review (3 stars): Short Life
Glad these came in a 3 pack.  The original lasted about 6 months and now the first replacement burnt out after only 2 months. After I install the third one, I'm switching to LED.

Update:  The second replacement expired on 12/202017, they're lasting about 2 months. They are mounted right under the turntable and I suspect the filaments aren't vibration resistant, hence the short life.