If you're setting this up for continuous pot generation, you probably won't ever need to flip between MH and HPS. Also, if I were you I would look into getting some T5 fluorescents for vegetation and cloning. They're actually more energy efficient than HID, and they're more space efficient too since you can stack them on shelves.
khronik Reviewed by khronik on . Huge Grow Room In Progress... I have been saving for quit some time now waiting till I had the cash to build my ultimate grow room and the time has come. The actual grow room is in the progress of being built (finishing my basement) so far now I need to start picking out equipment. Its a 15 x 15 foot flower room -Lighting- 10 600w dual MH/HPS digital ballasts 10 Cool Tubes w/ bat wing mounted 8?-12? above Mylar all walls Floors and ceiling covered in white PVC sheets Rating: 5