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Old 01-16-2020, 04:01 PM   #5 (permalink)
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Default Re: Old plant grower, LCD lights, needs heip!

Thanks for your responses!

Please pardon my obtuseness.

Are we saying that all Kelvins in the 400 - 700 nm range produce about the same PAR values, all other things being equal?

Would the answer be the same for both LED and tube-generated light? Why?

Since par diminishes with the distance from the light source, what would be the difference between a a fixture designed for a deep tank and a shallower one, given the same footprint? More LED's? More voltage?

Thanks again,

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