I like the unit, but IMO it was a little expensive for just some actinics. It does create an awesome look with LED only and definety adds more color with the other lights on during the day. My tank (150g) isn't very wide so one unit worked from me, but I would recommend more than one LED strip for wider tanks that's why I say it's expensive for someone to just add actinics. IMO if you're going to spend 500+ on a couple of actinic strips you might as well change your lighting over to full LED and get the full benefit.
Oh and I used 48' because 10 inches of my tank is behind the wall and not viewable from the front which creates a low light area. I use that area for a low light corals and it also gives the fish a place to hide, but the LED does splill into that area.
Oh and I used 48' because 10 inches of my tank is behind the wall and not viewable from the front which creates a low light area. I use that area for a low light corals and it also gives the fish a place to hide, but the LED does splill into that area.