Sure, though one of the fluor experts will help more with the best wattage. A 250W metal halide would be perfect for one month of veg. 1000W for flowering just two girls is overkill too, you'd do excellently with a 400W HPS lamp.

If you're going to use 1000W for flowering, you might as well have ten plants since the electricity bill is going to be the same either way.

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