The awning light kit that's on your awning is probably this one:
https://store.lci1.com/awning-light-...tch-plate.html
You can download the technical data/parts lists at the link on the bottom right of that page.
Notice the $123 price? OEM LED lighting is usually expensive and almost always, a better quality "aftermarket" product exists for substantially less money. In your situation, Amazon, EBay and most lighting stores offer replacements that are more reliable, cheaper and easy to install.
On my Dometic awning, I replaced the OEM lights that failed the first season with one from Amazon. Cost, in 2015, was about $25. The LED strip light I chose is enclosed in a flexible, clear housing and is completely sealed against water intrusion. It's been "stuck on the awning" since 2015 and it still works, all the LED's work, and there's no indication that it may fail any time soon.
You can buy the same light on Amazon for about $30.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 If you do choose to go with aftermarket lighting, be sure to get the type with a silicone sleeve and make sure that both ends are sealed with clear silicone to completely waterproof the inside LED lighting strip.