Ok. LEDs are the ticket, or not the ticket so to speak.
I didn't know about five-o getting upset about the reflector in the lens. That's good to know. I'd be pissed to spend money on lights, then get a ticket and have to replace the lights with something DOT approved.
I don't mind a little expensive. I'm going to have this trailer a LONG time. I just didn't want to spend a lot of cash on lighting and not have it help.
I like the round ones. Being surface mounted I can get rid of the Jeep style lights on the back that I keep breaking. My 4' dove tail is nice but it is hard on exposed taillights. At $40 a pop I wouldn't be happy to keep breaking them.