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2 bulbs, 1 ballast

sativaman
sativamanstarted grow question 3y ago
Does any devices exist to run 2 bulbs alternatively (like two 12 hrs cycles, one On, the other Off) out of one ballast ?
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Setup. Lighting
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Med_in_Tropic
Med_in_Tropicanswered grow question 3y ago
It is possible to rig two timers in parallel with one ballast. Then you can program varying intensity to simulate natural day light with weaker mornings, intense mid-days, and ramping down evenings.
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