ok, I got the wind powered, rotating, dual light, prototype built.
here's a pic...
it is powered by the oscillating fan. those are cfls on the prototype. it's only half a meter long and very light. I should have some UVB light delivered any day. maybe I'll put those in this one.
it revolves, continuously, at least, has been for the last 3 hours. I have watched it for a long time and seen it do 520 degree turns, 360's and 180's. it isn't completely random...at the mid-cycle, it needs to store energy again. so, it will do the 180's and 360's at the beginning and ending of the cycle. I've seen the cables twine at least 3 times...that's a lot of energy.
I noticed, it tends to 'wobble' a little, the ends(where the lights are), sometimes 'dip', bringing the lights closer to the plants. see below for solution...
I'm starting the upscaled model at this moment, just taking a break.
it will be for the HID lights. a Metal Halide, 400W and a HPS, 400W. it will resemble the prototype, except be bigger. one meter long. also, the prototype has twine from the ceiling to the center of the device, but the new model will have twine going from one point in the ceiling to two points, towards either end of the device, creating a 'triangle', for better stability. this will actually raise the lights, slightly, as the device 'winds up'. then lower, but never lower than the original height, slightly.
pics when it's done...probably today, later today...