Hi there, I'm currently planning my AV install and want to use a grafik eye to control the dimming of the lights on the room - I've seen this working round someone else's place and the effect was fantastic. I'm planning on the 3106 or 3104 model. do these simply replace the existing wall dimmers (I know you have to install a bespoke back box for the unit) and utilise the existing wiring - or is there more to consider? I've seen in the instruction manual they show a 'distribution panel' but I'm assuming this is the US version of the power supply/fusebox. Looks to me like you simply need to rework some of the existing wiring...? Also, do they buzz when you've got the lights dimmed? and do they work with Low voltage lighting?