Grow Lights 101: Best Plant Growth Spectrum Color? White vs Red/Blue LED + What is PAR & ePAR Light?

Do plants use more light colors than we realized? What does the latest horticulture research mean for grow lights? What’s the best color spectrum for growing plants? This video is all about Light Quality. What effect do different light wavelengths have on plants and their development? Do plants need UV light? How does Far Red light effect plant growth? Do plants use green light or is green light wasted energy? These questions are answered, along with scientific research that you can read more about, depending on your level of interest. 00:00 - Intro 00:32 - Kelvin Color Temperatures 01:28 - Visible Light Spectrum 01:39 - What is PAR Light? 02:38 - Do Plants Use Green Light? 04:30 - Benefits of Green Light For Plants 05:07 - Photomorphogenesis 05:25 - Do Plants Use UV Light? 05:51 - Do Plants Use Far-Red Light? 06:25 - How Plants Use Photoreceptors 07:11 - What is ePAR Light? 07:46 - What is the Emerson Enhancement Effect? 08:33 - How Plants Use Green &