I already got this problem and I can't wait to have my luminators with a less inner energy storage.
But, for the redstone, how you could control by redstone your luminators with hidding the redstone wires ? By example, if I put my lumators into the ceilling, I can hide the electric cable, but not the redstone wire. At least if a way to send a redstone signal by cable would exists?
I think you can CF spray the cables, encasing them in CF blocks, which do transmit a RS signal, afaik.
EDIT: This thread is pretty old.