120 gallon reef tank lighting?

[msmith619]

I am setting up a 120 gallon reef, 48x24x24 and am transferring my 56 gallon tall reef to it this weekend.
My current fixture is a T5 (30 Inch 4x24 Watt AquaticLife T5 HO Light Fixture W/ 2 Lunar LEDs) and I have been very pleased with this with great growth.
My livestock include: photosynthetic gorgonians, long tentacle anemones, multiple Zoanthids and Palyzoas, mostly LPS (torch, blasto, duncan, and acans), and montipora.
I would like to try a few more sps and clams in the new aquarium. I am not sure that the 48" version of this light would be sufficient in this larger tank and would like some recommendations please.
I am interested in LEDs and wonder what your recommendation would be. I was considering two of the
Maxspect R420R Razor LED Lighting Fixture - 16000K 20.5 inch.
Is this overkill? Would the 48 Inch 4x54 Watt AquaticLife T5 HO Light Fixture w/ 4 Lunar LEDs be enought? Is there another fixture you would recommend?
I will be buying very soon.