I’ve had bad luck with the 5730-style corn lights personally… I had purchased a couple of varieties of 6W or 8W style candelabra bulbs, and even with the limited drive current, I noticed a reduction in brightness over a matter of a couple of weeks. On checking the bulbs, I noticed multiple emitters in the array had a significant darkening of the emitter surface, so they don’t seem to handle the heat very well. Plus, the color output on these tend to be pretty horrendous. The cool-white is a very ugly green/blue tint. The warm-white was okay, but a bit to artificially yellow for a natural light.
Unfortunately, the design of these bulbs leaves little or no heat sinking, and the shroud prevents any air from circulating, which causes further heat issues…
The best E12/Candelabra style bulbs I’ve found so far are the LED filament style. I’ve purchased a set of these which have been in use for about six months now, and have had NO failures or issues of any kind…
(not recommending this seller or listing, just an example of the style I’m talking about)
Again, my experience with the Cool-White bulbs has been bad due to the poor tint, but the bulbs have been solid performers.
(edit to add)Here’s the thread on the bulbs I bought…