https://www.amazon.com/Progressive-Dynamics-0318-4135-Inteli-Power-Converter/dp/B01EXKUA3E/ref=sr_1_2?dchild=1&keywords=RV+Power+Panel&qid=1623759194&sr=8-2

https://www.amazon.com/WFCO-WF8945PEC-WF-8900-Converter-Charger/dp/B00K8D9HJ4/ref=sr_1_29?dchild=1&keywords=RV+Power+Panel&qid=1623759194&sr=8-29

and

https://www.amazon.com/WFCO-WF-8735-P-Black-Power-Center/dp/B004LF14Q4/ref=sr_1_20?dchild=1&keywords=RV+Power+Panel&qid=1623759194&sr=8-20

Were on the first page of my search.

Normally shore power connects to your 12v panel and the battery. When on shore you charge the battery via the panel. When off shore you can only run 12v items(off the camper battery).

Could you link to the amazon lights you are talking about? Do you just want to be able to turn it on and off .. perhaps a camera would be a better purchase there?

Edit: I am assuming you want the light for when you are backing up.

Edit2: Here is a 12v panel like what I'm talking about: https://www.amazon.com/gp/product/B01EXKUA3E/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1