Thanks for the info.

So one Simu-L will require 2 L ports? ie L1/L2. The T5's are 2 ballasts and 4 tubes.

So i will need to run the Simul L off 2 ports with the 2 splitters? ie L1/L2 and L3/L4 is that correct?

Then to add the two T5 ballasts?