I installed (4) GE A15 60w equivelant lamps (LED7DA15M-WS9HT2 ) that are called out as dimmable, so I installed a Lutron Dimmer (TGCL-153PH-WH) to control that. The dimming is working fine but I get buzzing from both the dimmer and the lamps. I'm assuming these buls are not compatible with this dimmer. Is there another I can use that is?