That sounds good. I will switch it out tomorrow. Should I leave them on all the time (meaning the 10 hours) or maybe run 2x28 (NO)Watts for the morning, evening times? Only one 28 is rather dim... is the 4 hours higher light enough to sustain good growth? Or should I bump that up a little? I have the moonlights that go on in the evening. I know they dont really do much other than please me, ll.Thanks so much for the replies.