@Tony it doesn't dim with single bulb as well. I have ecosmart dimmable light in another room with hs220 and that works. The only difference between the two bulbs are the base. Same brand, same...

Hi, I have tried three different brands including GE, greatvalue, ecosmart 60w daylight bulbs with b12 base. When I install the lights either it flickers or it doesn't dim. eco smart - flickering and...