This is something that I want to try soon. I am thinking about mounting some rails to the slope so I can slide the lights back and down or up and forward based on current needs. Those fluence lights that @99PerCent mentioned look very interesting too.
I am quickly finding that there are many ways to skin this cat and there are a lot of knowledgeable horticulturists at OG. First time I popped some beans 30+ years ago, the internet had very little to offer. How times have changed.
SkyDog