Device and method for observing plant health

摘要

A lamp for growing plants includes a first set of orange light emitting diodes that have a peak wavelength emission of about 612 nanometers, a second set of red light emitting diodes that have a peak wavelength emission of about 660 nanometers and a third set of blue light emitting diodes that have a peak wavelength emission of about 465 nanometers. The lamp also includes a green light emitting diode that has a wavelength emission that is between 500 and 600 nanometers. The green light emitting diode provides a human observer with an indication of general plant health.