I apologize if this was already posted. This issue has been discussed in various threads,
but I don't think it has earned its own separate thread yet.
Here is an article which goes into great detail on how good quality capacitors can make
or break an LED "bulb".
NOTE: This is a hobby for me, and so, some of the concepts discussed in the article
are over my head. Overall, though, I think the author does a good job (from what I
understand) of describing considerations when putting together an LED "bulb".