Don't know if same as ours in our TimberRidge, but here is a link to that model.
http://www.itc-rv.com/product/3-radiance-led-overhead-light/
To remove, pull down on one edge and you'll feel the spring tension, you can keep pulling on one side to bring the spring out, or push the spring in with a small putty knife to drop the light out on that side and then pull rest of way out. Make sense???
'16 Outdoors Timber Ridge 280RKS
Reese 1700# Trunnion w/ DualCam HP
'03 EXCURSION XLT V10 4.30 Axles