Quote Originally Posted by Electric-Light View Post
I've always figured it was issues around dimming and the results so far points in that direction and compatibility looks to be the sore spot. So much that Lutron felt it was necessary to withdraw warranty on their dimmers when they're used with a lamp that is not approved by them.

"Warranty on your Lutron 100 W C•L dimmer or 150 W C•L dimmer or 250 W C•L dimmer will be void if
used with bulbs that are not on this Lutron compatible bulb list. " -Lutron Electronics
Not sure if it addresses the warranty issue but this seems like a fairly universal unit