Post this in the premium aquatics forum and I'm sure jeremy will answer you in a day or two.
I replaced the t-5s over my 90 lps/softy tank with 4 of the 48" older non xho strips, 2 white and 2 blue. I could have probably gotten away with just 2 but 4 of them are quite impressive. Everything in the tank looks better with these and the shimmer bonus. Immediately solved the heat issues caused by the t-5s.