Robert S Nendza,
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0099010
Robert S Nendza,
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0099010
Grow with Grubbycup,
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0099010
Innovative Grow Lights,
KESSIL was left out of this study for a reaon... ;-) http://www.innovativegrowlights.com/Kessil-H380-LED-Grow-Light-p/ksh380.htm…