I am a cost-no-object type of guy when it comes to reef aquarium systems. It's almost always to buy the best up front than purchasing something substandard early on and having to constantly upgrade. Having said that, I found impossibly cheap t5 lights that I just had to try out.
I've been slowly replacing our LED fixtures in the greenhouse here at Tidal Gardens for the past few months. LED are great for what they do best, that being energy efficiency, control, and bulb life. If you are looking for those things, LED fixtures are a great option. Here however, I've noticed the corals grow and color up so much better under t5 fluorescents that I started swapping out LED fixtures in favor of t5.
I considered going with the highest end fixtures the hobby had to offer, but I came across some horticultural grow lights on amazon that were less than $100 shipped 2-day Prime with bulbs included. These lights may be total garbage, but for that price, I am willing to give them a try. Either way, I'll let you guys know how it turns out!