Lighting Q....t5's to radions

[authentic]

Tank is 60x23x21 I have been running T5 since the tank started many years ago period I am using an Ati sunpower and it has done very well for me period however, switching out the bulbs. And replacing the ballast. It's starting to make me think that I should switch to radions I am already running them on my frag tank .I also have 2 reef bright strips that are approximately 60 inches long.
my question is how many. XR15 pros what I need to cover the area and what type of hanging unit would be best to continue using the reebrites

 

[Gumbies R Us]

Bumping your post!

 

[eggie]

I wouldn't go with XR15 more with 2 XR30. Im using 2 Radion XR15 in a 36" tank and Im reaching 300Par tops runing @ 90% intensity and im movin to T5 as they have better coverage IMO