Which Bargman lights do you have? EasternMarine.com has a lot of LED lights. I chose to completely replace my incandescent Bargman assemblies with all new LED ones. Well, Backup Light is still incandescent. Anyhow, these hardwire to the coach's wiring, where the original lights wired in. I wanted that, because a lot of my trouble was with the sockets.
They DID HyperFlash. I had planned to add LED "lollipop" lights on my mirrors. Amber front, Red Rear on a Pedestal. I saved $$$ by buying incandescent instead, and that brought the lights back to normal blinking speed.
Eastern has a sale ending today. I don't know if lights were on it.