Well we built the cabinet last night and we ended up having to make it 4' x 4' x 2'. After seeing how wide it is I'm beginning to question the 150watt. I could buy 2 of them and have 2 light sources spread out, but then I found this on ebay and it kinda seems like a no brainer. More than twice the light for only $60 more bucks. I think I'm gonna pull the trigger on this one I'm sure myself and my plants will be much happier. I no that's not an ideal reflector but I like the fact that I can adjust it. What do you guys think seems like a great deal to me. Anyone have experience with this company? Thanks for all the responses so far!