Growing With LED Lights:More than Footcandles and Lux: New Ways to Think About Indoor Orchid Growing

摘要

FOR A NUMBER of years, my handheld light meter puzzled me when it came to indoor orchid growing with fluorescent lights. I used it to adjust the height of lights above our phalaenopsis, only to see the leaves redden up notably at just 600 footcandles(fc) on the light meter. That should be quite a low light intensity. Dropping the light into the 300-400 fc range brought back the green — with still profuse growth and blooms.