On 08/12/14 09:41 am, Tony Hwang wrote:

We just bought two "65-Watt equivalent" "Feit"-branded dimmable BR30 LED
bulbs (very cheap at Costco with an instant rebate from the utility co.)
to try in our dining room (we really need four altogether but bought two
to start). They are brighter than the 65W incandescents they replaced
and seemed to work fine with the dimmer. But because they are a little
too bright at full power we set the dimmer a little lower this morning
but then noticed that the brightness would jump up and down a little
from time to time -- very annoying. I have no idea whether the problem
is in the bulbs or in the dimmer.

Did you mix them with other kind bulbs? It happened to me when two
different brand LEDs were mixed(GE, Philips).

Two of the LED bulbs, two of the original incandescents.

Perce