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HPS has red light (2000 - 3000 Kelvin) and so resembles late summer light, good all round, but best for flowering. MH usually neutral/blue/cool white light 4000-6000 kelvin, which is lunchtime daylight, good all round but best for veg. and not perfect for flowering.

With what you've got, I'd go:


Veg: -1000w MH (1) -400w mh (1)

Flower: -1000w Hps (1) -1000w MH (1)

Clones: couple of flourescents

Maybe even add the 400w to the flowering, depending on circumstances and number of plants.
I'd definitely put most light in the flowering room.

Check this dude out, he has similiar equipment:
http://boards.cannabis.com/showthread.php?t=87140

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