| | 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?