Review on SRRB Direct 1139/1383 LED Replacement R12 BA15s Bulb 12V/24V AC/DC - Ideal for RV, Camper, Trailer, Motorhome, Marine Boat Reading Light (2W, Warm White) by Montez Vazquez

As mentioned in other reviews, it is very difficult to install. After wrestling with this for a while, I went to the grinder and lined up the contact on the adapter as shown. This made the installation very easy. I removed just enough so I had a flat surface. You can also do the same thing with sandpaper or even a nail file, but it will take longer. There is no need to remove the jig as others have mentioned when putting this piece down. It's bright, it works, but I got 3 stars because of the modifications needed to install it properly.