Our winters require us to use setouts in the garden. We've been growing setouts now for 20+ years using the same method. It works, but it's not the cheapest nor most efficient.. We plant setouts January to March. The plants thrive under the hanging lights and move out to a hoop house by April 1st. Our goal is to produce 40-75 standard trays of of setouts which we use in our gardens and occasionally sell to pay for our materials. Here's the construction details: http://www.milkandhoneyfarm.com/garden/lights.html