LED lamps have very different response to dimming than previous generations of lighting lamps. It is important to remember that the pre-set scenes of a lighting control system will need to be adjusted if a project has upgraded to LED lamps.
LED lamps could also have a very different dimming curve to previous generation of lighting lamps. A lighting control system will need to compensate for LED dimming site effects such as:
Dead travel this is when adjusting the dimmer channel output seems to have no relative effect to the LED lamp light output.
Popping on a LED lamp may require a minimum level before it is able to start producing light. For some lamps this might be as high as 10%-15%.