Plant leaves are green for the most part because they absorb the light colors other than green—red and blue.
Plants use light for photosynthesis — making chemicals they need for growth from light. There are several compounds that plants use to accomplish this, primarily chlorophylls and carotenoids.
In this chart, the light absorption spectrum of green plants is shown by the green line.
Z-Lum Cool Pink grow lights employ a mixture of colored and white LEDs to put the light energy where it’s most useful.
The human eye is most sensitive in the middle of the rainbow—the yellow and green light range, so Z-Lum Cool Pink lights appear much brighter to plants than they do to us.
Z-Lum also makes white lights. Why?
We make white light bars for use in public places or in living areas of the home as some may find the Cool Pink color to be strange. For those who prefer, Z-Lum 40-watt light bars are available in daylight white. While these may not be quite as efficient in terms of plant growth per energy dollar, there are applications where the white light is more desirable.
