I don't have much experience with LED lights, so i can only take a guess here, but i would say for probably most low - medium light plants you should be okay, but with a height of 30" you may find some carpeting plants that need high light levels (such as HC) may suffer or grow slower?
But either way, i would wait for someone who has a bit more knowledge in this area to give you a better / more accurate answer...
Also, are you planning on adding pressurized Co2 to the tank? Since with high light levels most people recommend using Co2 or you may find algae taking over the tank quite quickly if there are a lot of nutrients in the tank...