I need to build, or have built, a little unit that controls the rate of fading up & down for lights (or any other 120VAC). It would be triggered by some sort of input switch- doesn't matter- physical switch, light sensor, sound, etc. So, in esscence, you would set the fade in rate, the fade out rate, the max brightness level, and plug in a light. Then- when it is triggered on, it fades the light in at the rate you dialed in, to the max brightness level. When the switch is triggered off, it fades the light back out at the preset rate. Output would be some sort of 120VAC capable of handling, oh, 300-500 watts or so.
I know very little about electronics- definitely not enough to build one of these myself. How difficult would this be? And, who/where would I go to have it designed/built for me?
Thanks!