In 2018 Tiffin added at the top of the windshield the Tiffin Logo that lights up, but mine lit up uneven. While at Turtle Beach we meet John and Cindy who also had a 2018 Tiffin but his logo light was even. John stated that his also had issues and that Tiffin replaced the LED lights. He showed me how to get the lights down.
When I took mine down the LED strip was very dark in color, brittle and broken in some areas.
I got an 8 ft color LED strip from Home Depot and replaced the the original LED strip. The controller allows for a single color, fading from one to another, flashing, etc.
And here is the results.