always had a bit of problem with backing up at night, could not see good the rear spot lights were just not up to the task.
so i mounted led fog lights in the rear and wired them to the normal back up lights. this makes the fog lights come off/on automatically
the light out put is great. back up lighting problem solved
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1