Spectrum and PAR Reading Explained

To gauge the amount of useful light emitted by LED, HID, and fluorescent fixtures, two measurements are essential: PAR and spectrum readings. PAR measures light emissions within the photosynthetic range, which spans from 400 to 700nm. This range represents the wavelengths that plants utilize for photosynthesis and overall growth. PAR is measured in micro moles of light per square meter per second.

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While PAR is a critical measurement, it only tells part of the story. Plants absorb light differently across the PAR scale, with some wavelengths being more crucial than others. This is where spectrum readings come into play. A spectrometer is used to measure the light spectrum emitted by a grow light. By combining PAR and spectrum readings, you gain a complete understanding of a light's effectiveness.

Spectrum readings reveal not only the wavelengths emitted by the light but also the absorption value of each wavelength. This information helps you determine if the light is emitting the proper wavelengths necessary for robust plant growth. For example, HID lights may have decent PAR readings, but when their spectrum is analyzed, it becomes evident that they emit most of their energy in the wrong areas, making them inefficient.

In contrast, Kind LED Grow Lights offer high PAR readings and an accurate distribution of strength across the desired spectrum, making them an excellent choice for indoor growers who want efficient and effective lighting.

PAR Reading Comparison at Different Footprint Intervals

Kind LED Light Spectrum at 24 Inches with Plant Absorption Percentage Overlay

Why White LED's Matter

One of the main benefits of LED lights is their ability to target specific wavelengths. However, some companies have started using all-white LED lights in their designs, resembling the color temperature range of traditional bulbs. While this may seem visually appealing, it goes against the energy efficiency LED lights are known for.

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LED lights are designed to provide what plants need for photosynthesis without wasting energy on wavelengths that plants can't readily absorb. The targeted spectrum of Kind LED lights focuses on the wavelengths with the highest absorption rates, ensuring optimal growth and flowering.

While some claim to replicate the sun's spectrum, it's important to remember that the sun has an endless supply of nuclear energy and isn't concerned with wasting energy in unused spectral ranges. Your grow light, however, aims to be efficient and save energy while still providing your plants with what they need.

In conclusion, understanding the importance of LED grow lights and PAR readings is crucial for successful indoor gardening. By considering both PAR and spectrum readings, you can choose a lighting system that provides the right wavelengths for optimal plant growth and saves energy in the process.

Frequently Asked Questions

Q: Are all LED grow lights the same?

A: No, LED grow lights can vary significantly in terms of their PAR readings and spectrum distributions. It's important to choose a high-quality LED grow light that offers a targeted spectrum for optimal plant growth.

Q: Can I use other light sources for indoor gardening?

A: While HID and fluorescent lights can be used for indoor gardening, LED grow lights are often preferred due to their energy efficiency and ability to target specific wavelengths.

Q: How do I measure PAR readings and spectrum distributions?

A: PAR readings can be measured using a PAR meter, while spectrum distributions can be analyzed using a spectrometer. These tools provide valuable insights into the light emitted by your grow lights.

Q: Are Kind LED Grow Lights a good option for indoor gardening?

A: Yes, Kind LED Grow Lights offer high PAR readings and an efficient distribution of strength across the desired spectrum. They are a reliable choice for indoor gardeners looking for optimal plant growth and energy efficiency.

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