i have the CAD lights slim profile LED lighting system 3.8W. Triple Panel LED bands with 3000 LUX/Fc, equivalent to 24W of T5HO if your interested. PM for pricing.
A BoostLED PAR30 will adequately cover a 12x12 area, so that'll work. I'm actually on the same boat. I bought an Aqueon Evolve 4 and was going to buy a Boost PAR30 until I found a RapidLED PAR38 for the same price used.