I would go with the 4. I got the pro like 4 weeks before the 4 came out or I would have gotten it. I believe it can also dim the light geadually so you can have a more natural lighting where it slowly powers up and then slowly powers down at night, same with the heat and night drop. grounded plugs are necessary if your using a metal rack system
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1.0 firefly(pos het pied) 1.0 enchi 0.1 bumblebee 0.1 mojave 0.1 butter pastel 0.1 spotnose 0.1 pewter 0.1 pastel 0.1 pied 0.1 het pied 0.1 vanilla 0.7 normals

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