Replaced the florescent tube lights with Leisure RV lights. They say they are the same size but the screw locations do not match up and have nothing you can screw into. I ended up taking the old lights down, gutted them and put the housing back into the ceiling. This gave me something I could screw the new lights into. Here are some photos of the process. Once I had it figured out it took about 10 minutes per light. Here is a link to the lights if anyone is interested.https://leisurervparts.com/led-rv-led-ceiling-interior.../