Grow Lights 101 – Part 2

Grow Lights Made Simple
Part 2

In this lesson, we are going to learn an important equation for understanding the light we provide to our seedlings. I know math isn’t as fun as gardening, but understanding the basics of grow lights will help you make good decisions.

Lesson Resources

Download the Grow Lights Lesson Summary

Excellent book – Gardening Under Lights by Leslie Halleck

Photone App to Measure Light with your Smart Phone

List of DLI requirements for different plants

Article explaining why you should care about PAR, PPFD, and DLI

Maps showing how DLI values change with seasons

Photo credit: Light Prism GIF

Photo credit: Light dispersion image