If all you can get in the 2700k spectrum range is 23 watters then get like atleast 6 of em. Look for the bigger 42=150w equiv. ones, get a few of these.
thanks man. i was thinkin about gittin em from like cvs pharmcy. the got em how many lumens should i have goin to my babys if i want to harvest about 15-30 grms?