Steve,
1) How are you measuring and comparing the intensity of T5 lamps to MH? Are you fishing around for a spot of highest intensity or mapping out a grid both horizontally and vertically?
2) What specific T5 lamps were in the T5 fixture you measured? Did the fixture use true individual parabolic reflectors? What fixture was measured? Did the fixture utilize active cooling? How old were the lamps? How high above the water were the fixtures?
I'm all for "measuring" things in an attempt to quantify differences but if there's a complete lack of control and standardization then the comparison is as useful as "MH sucks and T5 kicks a$$".
And to be fair, I use both MH and T5 in combination
