I am running these on my rack to light up the sides of the truck. They are 11" and have spot/flood combo. Looks like they would fit in that space. I've had them a year and there's no moisture inside.cool. thanks. look like these on amazon; however, they are spot, not flood lights.
https://www.amazon.com/Lightronic-11inch-Light-Truck-Single/dp/B01M7NT3OZ/ref=sr_1_16?ie=UTF8&qid=1533822133&sr=8-16&keywords=11"+led+bar
https://www.amazon.com/gp/product/B00OZ35XQE/ref=oh_aui_search_detailpage?ie=UTF8&psc=1