3 - 315w cmh or 3 - 400/600w hps? Have both.

Stoneypony

Member
As the title states, I have 3 - 315w cmh hydrofarm phantom II ballasts with hydrofarm reflectors and I also have 3 - 600w hydrofarm dial-a-watt ballasts with radiant 8 air cooled hoods. I just purchased them for such a great price I couldn't turn them down. I haven't used them yet and have heard so many conflicting reviews. I have a large heated room that is temperature controlled. I want the BEST QUALITY not yield as this is overkill for personal use. Everything is hydrofarm. Again, 3 - 315w cmh or 3 - 600w hps. I can also change out the hps to 400w lamps as the ballasts are dimmable from 600w all the way down to 250. I understand that it is advised to change the lamp and not dim the lamp as it may effect efficiency and also spectrum. I am not limited on cooling or electricity supply as I have ran 2 new dedicated 20 Amp circuits to supply the ballasts. I am only looking to grow up to two pounds max per grow. I am also newer to this and need advice about lamp spacing and overlap since there will be 3 light sources. I also know there is a possibility to mix and match for spectrum, however, I would like to keep the Temps as even across the canopy as possible.

Thank you in advance <3
 
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