I'm going to buy a new MH light set up soon (if The Man does not take all my tax's and I get a return) and my question is: I've got a 29 g I'm considering either a 250 w of a 150 HQI. I've read all over this board that the 250 HQI is close in output to the 400 w. Does the same hold true with the 250 mogul vs 150 HQI?