One thing I have to tell you about these dimmers, is if you have a burned out bulb they will still light with the icecap ballast, but if you run the dimmer it will burn out the ballast. The safety feature that shuts down the ballast is defeated when using the dimmer. So if you donââ"šÂ¬Ã¢"žÂ¢t have a bulb installed properly, instead of the ballast shutting down it will just burn out and you will have to send it in for repair. Its happened to me more then once. You have to check your bulbs carefully with an ohm meter when you install them. They usually burn out when dimming up. You shouldnââ"šÂ¬Ã¢"žÂ¢t have a problem if you have the end caps mounted and good bulbs.