The lights I have bought have a transformer for each pair of lights. Can I take a radial power source from the lighting circuit for each pair of lights, and does each one need to be fused down to say 3 amps? Can I run 6 lamps off one radial power source and can all lamps run through a single transformer? Or do I need to to set these up on a parallel circuit? Thanks - any guidance would be appreciated (I know about part P and that I'll need these inspected).