| What I would do is get a 400 HPS then you can get the conversion MH bulb for it. Conversions are 360W I think. I would rather have the 400W HPS and the 360W MH than a 400W MH and a 360W HPS. Can you keep the ballast ouside of the room? That will make a big difference. The ballast puts off the heat. A 250 probably wouldn't put out as much heat. Do you plan on expanding you room size in the future? If you do then the 400 is good. If you don't plan on getting a bigger area ever, then you would probably be ok with the 250.
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CARPE DIEM, OMINA VINCIT AMOR, SI FRACTUM NON SIT, NOLI ID REFICERE |