Adding Lunar Lights

I've currently got a Nove Extreme T5 lighting fixture. I'd like to add some lunar lighting to my tank. Any suggestions on a good way to accomplish this. I can't exactly mod my light fixture so I wasn't sure what my best options might be.

 

any top canopy or anything?

I have the R2 moonlights (R2 Moonlights, Beautiful, Shimmering Blue Moonlight and Ambiance for Your Aquarium) mounted on the front of my canopy shining down towards the water and this works pretty well.

They offer a couple of different options...the setup I have uses these:
http://r2moonlights.com/r2-dual-extreme-led-moonlight-p-7.html

 

No hood, just the light fixture sitting over the tank. Perhaps there's a way I could add some to the edges of it. I just want to be sure I can pull the plastic off still to change the bulbs out when needed.