Hi, I'm just quoting a job currently specified with alot of 0-10v LED dimming. With the CBus L5504AMP unit does it work by the LED drivers having a permanant 240v supply and then we can dim from 0-100% with the L5504AMP or do we need to use a relay circuit to turn on the driver and then dim using the L5504AMP? This way would make it not as smooth programming though I guess as you's have to have a separate circuit on/off then a separate button to dim? Thanks Mike