Hi Rick. Thanks for the photos. It looks like the top of the "wall" is approximately 2 feet from the ceiling. Investing in a surface mounted, linear LED fixture(s) with a separate controller (timer) would open up many planting options for you. The greenhouse fixtures I've seen on the web indicate installation at 2 to 4 feet from the plants is optimal so a trim kit that allows aiming should do the trick. Best of luck.
