Since my Crossroads Sunset Trail 250RB doesn't have a ladder this is what I bought to have a flag pole:
Camco 51611 Hitch Mount Flagpole Holder:
https://www.amazon.com/gp/product/B004IVGA0G/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1RV Square Bumper for Bike Cargo Carrier Hitch Receiver Adapter Mount on RV Travel Trailer Coachman with 4" or 4.5" Bumper:
https://www.amazon.com/gp/product/B01CK2357A/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1Homdox Flagpole Light 26LED Solar Powered Waterproof Auto Charge and Light Up for 15 to 25 Feet Flag:
https://www.amazon.com/gp/product/B01A8HJ26C/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1FlagPole Buddy Light Holder Adapter Plug:
https://www.amazon.com/gp/product/B003GD5GNE/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1http://www.shop.flagpolebuddy.com/End-Plug-Adapter-for-Fiberglass-Poles-106605.htmFlagPole Buddy 16' Fiberglass Flag Pole:
http://www.flagpolebuddy.com/16_ft_Fiberglass_Pole.htmlBasically, I had to get the bumper hitch and flag pole holder to make this work. I went with a fiberglass pole figuring it would be lighter to deal with. The LED pole light is very bright and works great! Here is a picture of the set up at night:
