Rear fiberglass bumper question

I used the "new" led LP bolt lights. I also made a bracket for the plate from an aluminum angle iron drilled it full of lightening holes and put two square holes in it to accept the LP nylon screw holders. Painted it black and bolted it to the bottom of the FG bumper. Weighs next to nothing and is invisible as the bottom of the LP covers it up. 75 Sport