How the Full Spectrum of Light Can Help Your Grow Succeed

Spectral tuning is the technology you will want to give your grow a boost. By adjusting the light spectrum, you are able to tailor your harvest to meet your needs.

There are many advantages that come from understanding the light spectrum and how it affects your grow. It is undoubtedly one of the most critical aspects of ensuring a healthy harvest. First off, it’s important to recognize that plants require photosynthetically active radiation (PAR)—the available light to accomplish photosynthesis. After this basic need has been met, you’re able to experiment to discover what types of light create your ideal results. Adjusting the light in your grow facility can aid in nutrient uptake. It can also help your plants grow bigger, or can even alter plant anatomy.

Different Light Yields Different Results

The best place to start is understanding what light spectrum a plant needs at each stage of growth. Some may assume that plants utilize the full spectrum of light at all times, however research has revealed more nuanced responses. This is because natural sunlight does change over the course of a year, and even during the day. Humans might not notice it, but plants have evolved to respond to these tiny alterations to maximize photosynthesis and their chance of reproduction. This natural process is complex and took millions of years to evolve, but light is absolutely integral to a plant’s success whether it is in the natural world or an indoor grow facility. This is why our advanced LED lights incorporate specific, advanced spectral tuning.

We have practical experience with utilizing different spectrums to increase a harvest yield. While there isn’t a magical combination of factors that will lead to the perfect harvest, there are things you can do to improve your yield. Here are a few tips regarding spectrum:

  • Different spectrums of light elicit varying outcomes. It’s important to explore what each spectrum of light does for your grow–whether you’re looking for potency, terpene profile, or pure quantity.
  • If you’re looking for quantity—helping a lot of plants grow quickly—you can primarily use red light (640nm to 680nm). Plants often respond well to red light as it encourages flowering and photosynthesis.
  • Blue light is also important during the early stages of growth. These wavelengths (430nm to 450nm) encourage the development of chlorophyll, photosynthesis, and has a role in creating terpenes. Therefore, you won’t just be creating a lot of plant material, but high-quality crops.
  • White light (also known as green light, because it appears green to our eyes) is also beneficial because it can often reach deeper into a canopy — it isn’t just absorbed by the tallest plants that are closest to the lights.

Fun fact: Speaking to the incredible benefit of spectral tuning, NASA has even been studying the effects of different light spectrums on plants. This knowledge will be particularly helpful to grow plants aboard a spaceship, or in places where resources are limited. NASA has favored LED lights for their lifespan, durability and efficiency.

Our light fixtures Evolve EV700 and EV360 are wonderful options for any cultivator interested in exploring what spectral tuning can offer.

Having some basic knowledge about how the light spectrum and uniformity affects your grow can be empowering. We recommend experimenting with some different approaches to see what best suits your needs, and keeping a close record of light spectrums used, temperatures, nutrients and crop density. These factors can all play a role in the success of your eventual harvest.