I just got replacement LED 's for my halogen. When I got them home I noticed that they said non-dimmable. The fixture in my sewing room has a dimmer. I'm going to put them in the one in my kitchen that has no dimmer and try them out for color and brightness. I will double check with Home Depot to see if it's ok to put them in a dimmable fixture, just not use the dimmer switch. I don't want to take the chance and blow them, they cost $12.00 a piece!!