I used 4 of the 6" LED lights BPS sells. They say they're 80 lumens each and can be used under water 24/7. And I wanted some serious firepower. The OEM running light in the middle cracked when I pulled it off because the screws were too tight. The one I replaced it with doesn't fit as well but I like the way it's made better. In the daylight these lights hurt my eyes when I look directly at them so should be crazy at night to light up the ramp. Always afraid I'm going to hit the docks between the narrow ramps because it looks like I'm backing into a black hole. And have to back the trailer about a block to get in the driveway thanks to there not really being room to turn around at the end without jackknifing and/or ending up in one of the deep ditches. Once I figured out how the extra wires needed to be run front to back it was a pretty easy pull. I lubricated the baling wire with bar and chain oil to help with the pushing. Also kept all the wiring inside the trailer so it looks somewhat factory. I'm good at pulling wire through tight places so this trailer was a breeze. Some of my pics got deleted by accident and I'm not about to pull the lights off just to get them. What I did in the rear cross member should be self explanatory. Can't wait to try them out at the ramp next full moon.