Ok, so I'm going to answer my own question. As for lumen's per watt these lamps are not much better than t-8's. A new t5 bulb puts out 100 lumen's per watt. Where these induction lamps have the edge over fluorescents is the deprecation in light output induction lamp life hours 100,000 and 5% decrease after 2,000 hours. T5's life hours 8,000 - 20,000 and a 25% lumen decrease after 2,000 hours. So if your looking for a low maintenance fluorescent inductions have the edge. I don't know what kind of light penetration these lamps get. Pro's of induction lights great life expectancy & decreased lumen loss, low heat, energy saving. Cons of induction lighting initial cost, uncertain about light penetration?, seems untested in grow ops. I don't think they will hold up in a flowering room. But it seems to me that there measuring the light output in different way to make the light seem better than it actually is. At $450.00 for a 100 watt fixture putting out 8,000 lumen's there not a deal at all. So it seems as if where going to have to deal with the heat issues from HID's for a little longer.