While these are dimmable they do not fully turn off when used with a Lutron Castera dimmer. I had 2 of them on the same dimmer and they would “ghost” in the off position. I moved them to another spot with a third traditional fixture on the same switch and it provided enough resistance to allow these to be fully off. Worked out for me but keep this in mind if you’re using an electronic dimmer as it may not be fully compatible.