Original post:DIY LED Grow Light Wire up and Testing -  Part I: The Plan

First off, I'm going to state that I can see several sources for error in my calculations, which are skewed toward higher efficiency.  I'm sure the distribution approaches a beautiful inverse F-Distribution.  I am ignoring efficiency …

Background:

We've been looking at the different ways of meeting our needs as a family.  We don't bring in much income and we are always looking for ways to make the small amount we do have stretch to its maximum efficiency.  We grow much of our medicinal and edible greens …