Okay so looking at the PAR that you posted ...
Let's guess that a single light will give you a PAR of ...
40 @ 50cm depth
90 @ 30cm depth
170 @ 20cm depth
A second light will roughly double that (where the light overlaps)
Every individual coral is different but as a rough guide of how much PAR different types of corals need/can handle (just based on my experience so take it with a pinch of salt!!!):Softies
Zoas 50 - 300
riccordea mushrooms 100-200LPS
euphyllia (hammers, torches, frogspawn) 150-200SPS
Seriatopora (green birdsnest) 200+
Seriatopora (pink birds nest) 270+
Montipora (plating) 180+
Montipora digitata 200+
Easy acropora 200+
Difficult acropora (millipora, tenuis) 350+
I think two of those lights (are they the Fluval 3.0?) will grow softies, LPS and some SPS .