How LED Grow Lights Work: What You Need to Know

If you’re looking to purchase a full spectrum LED grow light for your indoor garden, it’s important that you first understand how they work. In this blog post, we will discuss the basics of photosynthesis and how led grow lights play into that process. We’ll also take a look at PAR (photosynthetically active radiation) and touch on makes the best full spectrum light from various led manufacturers. If you’re ready to learn more, keep reading!

What is photosynthesis?

Plants are able to convert light into energy through a process called photosynthesis. This process is essential for the survival as it allows them to create their own food. as the plants grow. In order for photosynthesis to occur, the plant needs two things: light and carbon dioxide. The light provides the energy that the plant needs to convert the carbon dioxide into food.

So, how do led grow lights fit into this process for indoor growing? Indoor grow lights emit a type of light called PAR (photosynthetically active radiation). This type of light is specifically designed to promote photosynthesis in plants. Wideband full spectrum LED grow lights are some of the best on the market and will help your plants thrive.

What makes a grow light good for growing indoor plants?

There are a few things to look for:

  • The light should be the right color. Led grow lights emit a range of colors, but not all of them are beneficial for plants. The best led grow lights emit a wideband spectrum that includes infrared, as these are the colors that promote growth the most.
  • The light should be bright enough. If the light is too dim, it won’t be effective.
  • The light should be focused. Led grow lights emit a wide spray of light, but not all of it is useful for plants since it can illuminate the walls of the grow area. The best led grow lights have a lens that focuses the light into a narrow beam. This ensures that more of the light actually reaches the plants.

What is photosynthetically active radiation (PAR)?

The McCree Curve as found in – “THE ACTION SPECTRUM, ABSORPTANCE AND QUANTUM YIELD OF PHOTOSYNTHESIS IN CROP PLANTS”

PAR is a measure of the amount of light that is available for photosynthesis between 400-700 and it was developed in the 1970s. When it’s called PPFD, it is measured in micromoles per square meter per second (µmol/m²/s). LED grow lights emit a wide range of PAR, but not all of it is useful for plants. The best led grow lights have a high PAR value, as this means that more of the light is available for photosynthesis.

Is PAR outdated? What about BPAR/PBAR (biologically active radiation) or EPAR (extended photosynthetically active radiation)

Par vs PBAR

A little known fact is that the PAR range only measures from 400-700nm (blue to red) and doesn’t include the entire range of light that is available for photosynthesis.

This led to the development of BPAR/PBAR (biologically active radiation) and EPAR (extended photosynthetically active radiation).

BPAR/PBAR measures the amount of light that is affects plant growth between 280-800nm. It also includes the ultraviolet range from 280-400nm and the infrared range from 700-800nm.

EPAR measures the amount of light that is available for photosynthesis, and extends the PAR range to include the infrared range from 400-800nm

LED grow lights that emit a wide range of BPAR/PBAR or EPAR are the best for plants, as they provide the most complete spectrum of light.

What next?

Now that you understand the basics of how led grow lights work, you’re ready to purchase one for your own garden!

If you’re looking for a grow light that will help your plants thrive, look no further than the Electric Sky led grow lights from The Green Sunshine Company. These led grow lights emit a wide range of BPAR/PBAR or EPAR and are some of the best on the market. Order yours today and see the difference! Thanks for reading!

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