If you are using an LED light bulb with a dimmer you may run into a problem. The dimmer may no longer work. Traditional dimmers are often unable to operate LED bulbs causing them to flicker or just fail altogether. This is known as ‘dead travel.’ You will need to check with the bulb makers website to see what they recommend in terms of a dimmer solution. Another solution maybe to call the Lutron LED Control Center of Excellence, which runs a hotline. The number is 877-DIM-LED8. Some companies are using apps on smartphones as a solution for some newer bulbs.