150w hps = most economically efficient grow light. With a single lamp you could pull about a quarter lb every 2 mo.
Imo id only bother with t5 for supplemental lighting along with hps @ 5000k-6500k temp
Esp when you can pick up a 150 for roughly 40 shipped, replacement bulbs for $7-9 just do the math.. cheaper to buy/keep going than most LED panels. And the electric on em is anything but expensive. Plus they make less heat than cfl...
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