1000 watt HPS is always the way to go... well 99% of the time.. 2 - 400s will not do what a 1000 watt hps can do.. 2 - 600's will do a bit better than a 1000 watt hps in special situations...

The key to getting the most of that 1000 watt hps is to keep it close to the plants.. To have great air flow.... The light should be no further than 12 inches from the canopy of your plants if you wish to have baseball bat size buds..


: )
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