I have a houseful of Insteon devices that play nicely with the FEIT bulbs from Costco. I tried several other brands unsuccessfully before I found these to work well.
Their 45watt equivalent PAR20 LEDs (which run at 8 watts) are brighter than the 50watt bulbs they replaced and they dim very nicely. There is some flickering at VERY low lighting levels, but I have yet to find an LED that doesn't do this. The other bulbs I tried flickered at all kinds of brightness levels.
And the great news is: They are inexpensive! a 2-pack of the PAR20s is $18.75 at Costco (as of August 2014). Less than $10 a bulb is a crazy good deal even as prices come down.
I also have some FEIT A15 bulbs (40watt equivalent at 4.3 watts) that are working well.
Good luck!
http://www.costco.com/CatalogSearch?sto ... d=FEIT+LED