Hps or led???

It cost me $200 to upgrade my heat sinks. Had to buy 8, that I should have bought in the first place. From 120mm to 133mm.

11°F difference in temps of the sinks. Within the manufacturer recommended maximum case temp tolerance.

Phucking LEDs can drive you nuts. But once the light rack is tuned. Its nothing else but pouring water to plants.
 
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