I too look forward to seeing photos of the area lit up by these lights, maybe as viewed from the drivers seat & through the mirrors? Looks like a nice installation though---smart idea on the 3-way switch too!
Here in Ohio and I think its somewhat federally codified any illuminated light viewable from behind must be red, no exceptions, side markers must be yellow. Technically, IF back up lights this powerful were "accidentally" tripped on while on a street/highway it might be citation-worthy to the right patrol authority.
However I've had those azzhats with million watt headlights crowd my mirrors---they seem to be clueless. Tapping the brakes or slowing down a bit usually causes them to pass which solves the problem.