What's a good large coverage LED light?
For a mostly LPS tank you don't need much power, you can easily get away with less fixtures and just raise them up higher to account for the shadowing.
I have 4 G5's on my tank, and it's almost identical width and depth as yours. I run my radions at a peak of 75%, a very steep peak for a short period of time. They are 8" approx off the water. I'd say average is more like 55% intensity. I have lots of sticks. 5 G5's, maybe 4 raised up, would easily light your tank with what you are tying to accomplish.
I do like that the Phillips have built in power supplies. Hiding all those big bricks is a problem. Lots of spread but not as much oomph compared to the G5. Not enough blues for me but it's a well built light from a good company and a good distributor that will stand behind their products.
I think either way you'll be happy with whatever you decide.
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