Help with light?

If CMH. Consider remote ballast for flexibility. Bulbs matter. And ballast warranty.

Examples....
 
600 watt HPS is gonna max out the wattage per sqft and honestly is probably overkill unless you are running supplemental CO2.

400 watt HPS is ok but just a hair under powered IMO.

a 315 CMH would be a great fit.
 
600 watt HPS is gonna max out the wattage per sqft and honestly is probably overkill unless you are running supplemental CO2.

400 watt HPS is ok but just a hair under powered IMO.

a 315 CMH would be a great fit.

Yeah I always thought 400w hps was a bit under powered but 600 was OTT, shame they don't do a 500w ey!
Some great deals on 315s these days too. :bigjoint:
 
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