What Light Is Recommended for Microgreens? Optimal Lighting

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Microgreens are often recommended to be grown under fluorescent or LED lights with a full spectrum. These lights provide the necessary light wavelengths for optimal growth and photosynthesis. Using these specific types of lights ensures that microgreens receive the right amount and quality of light needed for healthy development and maximum nutritional value.

The Importance of Light

Light is an important factor in the growth of plants, including microgreens. Photosynthesis requires light to occur. It is a process by which light energy is converted to chemical energy and used by plants for their growth. Different types of lights, such as fluorescent and LED lights with a full spectrum, are available for use with microgreens. Each offers its own set of benefits for the growing plant.


Photosynthesis is the process that allows microgreens to thrive, and it’s essential for healthy growth. It occurs when green plants absorb light energy from the sun or artificial sources of light such as fluorescent or LED lights.

The light spectrums and cycles emitted by these lights are used by the plant to produce carbohydrates which serve as its primary source of energy. Fluorescent lights with a full spectrum are recommended for microgreens due to their ability to provide a balance of red and blue wavelengths which are both important parts of photosynthesis.

LED lights can also be used, but they must have a full spectrum in order to maximize photosynthetic efficiency. Both types of lighting allow growers to adjust the cycle length so that plants get enough light during their optimal growing periods, providing them with the best chance for healthy growth.

Different Types of Light

When it comes to growing your microgreens, you’ll need the right light for optimal growth.

The two most common types of light used for microgreens are fluorescent and LED lights with a full spectrum.

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Fluorescent lights provide a wide range of wavelengths which is essential for optimal plant nutrition. LED lights offer an energy-efficient alternative as they emit only the specific wavelengths required by plants.

Additionally, both fluorescent and LED lights can be used in combination with automatic light cycles that adjust the amount of light needed based on the stage in the plant’s life cycle.

This helps ensure maximum photosynthesis and growth potential for your microgreens.

Fluorescent Lights

Fluorescent lights have become an increasingly popular choice for growing microgreens, as they provide a more balanced spectrum of light. They also offer an inexpensive way to set up indoor gardening and help create the perfect environment for microgreens. The soil structure and temperature can be controlled with fluorescent lighting, making it ideal for growing microgreens indoors.

They also provide daylight-balanced light that is suitable for all stages of growth. Fluorescent lights are easy to install and use less energy than other types of lighting, so they’re cost-effective and more eco-friendly. They come in different sizes to fit any space, allowing growers to customize their setup according to their needs.

Furthermore, fluorescent lights don’t produce much heat, which reduces the risk of burning young plants or damaging delicate leaves. The main disadvantage of using fluorescent tubes is that the intensity of the light decreases over time due to wear on the bulbs. Therefore, it’s important to replace them regularly in order to maintain optimal levels of light for healthy growth.

Additionally, fluorescent lights may require special fixtures in order to work properly. If you’re looking for a reliable source of balanced light that won’t break your budget or harm your plants’ delicate leaves, then fluorescent lighting could be just what you need! With careful installation and maintenance, this type of lighting can provide great results when growing microgreens indoors.

LED Lights

If fluorescent lights have been your go-to option for microgreens, you may want to consider LED lights too. Compared to fluorescent lights, LED (Light Emitting Diode) lights are much more efficient and have a longer lifespan. LEDs use up to 75% less energy and can last up to 50,000 hours, compared with 8,000 hours for fluorescent bulbs. Plus, they don’t contain any hazardous materials like mercury that can be released into the environment when disposed of improperly.

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LEDs also provide full-spectrum light, so it’s easy to get the right light intensity and color range for your microgreens without having to buy different kinds of bulbs or fixtures. The ability to adjust the spectrum is especially useful if you’re growing a variety of plants since different species require different amounts of certain wavelengths of light.

Furthermore, unlike fluorescent bulbs which take some time before reaching their full brightness after being turned on, LEDs reach optimal brightness immediately. One potential downside is that LEDs tend to be more expensive than other types of lighting options, but this cost is usually offset by their long life span and energy efficiency.

Additionally, LEDs don’t emit any heat, so they won’t contribute to raising the temperature in your grow space like some other forms of lighting might. This means you won’t need additional cooling systems or fans, which can add extra costs as well as noise pollution in the room where you’re growing your microgreens.

In summary, while fluorescent lights may have been your traditional go-to option for microgreens, LED lights offer several advantages, such as superior energy efficiency and longer lifespan, that make them a worthwhile investment in the long run. Not only do they provide full-spectrum lighting, but they also allow you to adjust the spectrum according to what type of plant you’re growing and won’t add extra heat or noise pollution either.

Choosing the Right Light

Choosing the right light for your microgreens can be tricky, but it doesn’t have to be. Take, for example, a restaurant that replaced their fluorescent lighting with LEDs and saw an immediate increase in yield from their microgreens.

When choosing a light for your microgreen garden, there are some important factors to consider:

  • Lighting efficiency – LED lights are the most efficient type of lighting available and can provide more light than other types of lighting while using less energy.
  • Light positioning – Proper positioning of the lights is key for optimal growth. You should position the lights so that they are evenly spaced over your entire growing area and at least 6 inches from the leaves.
  • Spectrum – The spectrum of light emitted by different types of bulbs can also affect growth rate and quality. Fluorescent lamps produce a wide spectrum of colors that can stimulate plant growth, while LEDs produce a narrower range of colors that may not be as stimulating but still provide enough light intensity to support plant growth.
  • Cost – Depending on what type of bulb you choose, cost can vary significantly. LED bulbs tend to be more expensive than fluorescent bulbs upfront but may save money in the long-run due to their higher efficiency and longer lifespan.
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When selecting a bulb for your microgreens garden, it’s important to consider all these factors before making a decision. Different types of bulbs offer advantages and disadvantages depending on your needs, so take time to research which option will work best for you based on budget, energy efficiency, spectrum requirements, and proper positioning.

With careful consideration of these elements, you’ll be able to select the perfect light source for your microgreen garden!

Kathy Turner
Kathy Turnerhttps://mastermicrogreens.com/
Kathy Turner is the founder of MasterMicrogreens.com, a popular blog dedicated to helping people become master microgreen growers. Kathy is passionate about helping others learn how to grow the healthiest, most nutrient-rich microgreens. She believes that with the right knowledge and resources, anyone can become a successful microgreen grower. Learn more about Kathy by viewing her full Author Profile.

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