My fault, I didn't see the 42w. And I know you apologized, but you really should do something about that temper, after all, all I'm doing is trying to help you! It's all good but you still want more than 10,400 lumens. As much as you get really, on a clear day the sun shines about 50,000 lumens. So as close to this as you can get. You can tell what kinda light you have (soft white, warm white, etc.) buy the color of the actual light comming from the bulb. Blue is cool, Orange is warm, White is neutral. 42w is fine. Get as many of these as you can. I use about 12. You also want to double the light in the flowering process. And still want atleast 1 warm in veg. and atleast a couple in flowering.