one thing i notices-the light pictured is like a red spot light--we used those type lights for years on cop cars firetrucks etc. might i suggest a bulb like a R4414 or 4416. these bulbs throw out a more diverse beam --sorta like a tractor work light. spot beams are just that. anywhere not in the center of the beam isn't bright, but with the diffused beam, the light is spread more spread around---better for curves and hills--just a thought. oh yeah, on legality--in indiana at least, and by federal statutes i checked--these are o.k.---on the rear.
