http://tfivetesting.googlepages.com/par
tests done by grim reefer on different bulbs. as you can see the output is horriable. I am just stating on personal experience as well. after finding his tests results it really made sense to me why i was getting slow growth. they aren't the worst but when you have the oppertunity to get something better, why waste your money on them
but i do agree, aquascience are amazing bulbs. i haven't had the oppertunity to try out ati's but personally my favorites are KZ and aquascience