85
Tech In Plain Sight: Incandescent Bulbs
(hackaday.com)
This is a most excellent place for technology news and articles.
Rough service bulbs live longer in environments with high amounts of physical stress, temperature variation, and vibration. They don’t live longer in general.
The lifespan of an incandescent is dictated by the evaporation rate of tungsten and directly related to the wattage.