The Fluval lamp will be more than enough light for the spec. If you're running C02 then go for the Finnex, since it's even more powerful than the Fluval. If you aren't then go for the Fluval. I am using the Fluval fixture and I love it. Grows Needle Leaf Ludwigia, Dwarf Hair Grass, Anubias and Amazon Frog Bit with ease without C02.
Reginald- Blue Double Tail
Planted Fluval Spec