Hello Just got my QB120 board in the mail, beautiful and bright! I forgot if I got the 4K or 3K, is there a way to tell off the board? My cabinet is 45" wide 21" deep, about 45" tall of grow space, I was planning on doing two plants in here. Do you think this will cover it? or should I pick up another QB120, or wait till next week when the QB288 are in stock and use that? Thanks!