I think what you have now is probably sufficient for most corals. Alot depends on the brand, if they are individually reflected bulbs and what brand of bulbs you have. Also, what size tank? If it's bigger than a 55 you might need an upgrade for coverage in the tank.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.