“Plants have grown under sunlight for millions of years. Why would we want to change what mother nature knows is best?”
Well, we want to let you know that there is no such thing as a full-spectrum LED grow light.
There, we said it.
But before we get a flood of messages from concerned growers wondering what all the confusion is about, let’s first uncover what full spectrum means. Then we’ll let you in on the truth about full-spectrum LED grow lights so you can make the best grow light choice for your facility.
What is a Full-Spectrum LED Grow Light?
A full-spectrum LED grow light is simply a marketing term that implies that your grow light closely resembles light from the sun. This marketing term comes from the concept of “full-spectrum light,” which in recent years has been used to refer to electromagnetic radiation from the UV to infrared wavebands.
The History of the Full-Spectrum LED Grow Light
The full-spectrum commercial LED grow light is the newest evolution of an already confusing term. Originally, full-spectrum light described the only real full-spectrum light source, the sun.
1. Full-Spectrum Grow Lights Aren’t Optimized for Plants
A major problem with many full spectrum vertical grow light is that they are designed to give the appearance of daylight without being custom-tailored for rigorous plant growth.
It’s the reason why we at LumiGrow coined the phrase, “PAR is for plants and Lumens are for humans.” Not all wavelengths of light are optimal for photosynthesis. Plants photosynthesize electromagnetic radiation in the 400 to 700 nanometer range, known as Photosynthetically Active Radiation or PAR. So, plants don’t care how bright your light fixture appears to you.
3. Full-Spectrum Grow Lights Are Not Dynamic Like the Sun
Not only would it be too costly to create an actual full spectrum quantum board grow light, but if such a thing even existed, its performance would still not accurately reflect what’s happening in nature.
The sun’s spectrum is in constant flux due to changes in weather or its position in the sky relative to earth. In the graphic above, you can see how sunlight spectra change throughout the day or in different weather conditions.
best for the environment you’re growing in (greenhouse or indoors)
tailored to your plant’s growth phase (propagation, vegetative, flowering, or finishing)
or specific to the cultivar being grown
Full Spectrum LED Grow Lights vs. Other Grow Light Options
It should be clear by now that there are no real standards around full samsung lm301b grow light. Full-spectrum is simply a term used to sell you a simple idea.