I don't have numbers/data to support and frankly I'm not a sicence type of guy (not knocking it, I'm just not that smart). I base my findings on what happens in my tank. I had a tek for a little while, it was a great light, however I don't think it gave me the same covarage as what I get now with my aquactinics fixture and it had a plus 1 bulb factor (meaning I have 5 bulbs now and the tek had 6)
I go with what I like and if I was going to retro fit a fixture I would get reflectors I would get aquactinics again