Rated at 10,000 hours based on 3 hours on a day.
The max purchase number of 3 will not even light a ceiling fan(4 required).
The maximum purchase number is 25. That would fill one killer fan.
We upped it based on the feedback above. 
Dimmable?
This is a sale pulled from Amazon overstock. The info that was on Amazon is in our features. That’s all we have. You might take a swing at google to see if the answer is out there.
From Amazon.com:
“Non-dimmable – great for most general purpose lighting applications such as table lamps, floor lamps and ceiling lights.”