With the rise in popularity of horticultural LED lighting among indoor farmers, the line between fact and fiction has blurred. Surna Cultivation Technologies' Jon Kozlowski speaks with lighting expert Randy Shipley of RSX Enterprises to take a scientific approach to common indoor ag LED misconceptions. Access the recording: https://surna.com/webinar-horticultural-leds-fact-vs-fiction/ ------------- Some of the questions covered include: What is the difference between PAR, PPF, and PPFD? What is the DLC, and how can it help in lighting selection? How does spectrum affect plants? What is "far-red" light? Can you measure canopy penetration? How do diodes and chip quality affect the efficacy of the light fixture? ------------- This webinar was recorded on March 31, 2022. Watch the recording or view the slides at surna.com. Interested in receiving your own copy of the LED lighting ROI calculator? Contact us today at info@surna.com.

1. HORTICULTURAL LEDS:
FACTVS. FICTION
MARCH 31, 2022 WEBINAR
PRESENTED BY

2. Randy Shipley
Co-Founder & President | RSX Enterprises
5 years of LED lighting experience with
more than 100 facilities installed
Jon Kozlowski
VP, Sales | Surna Cultivation Technologies
20+ years in horticulture and controlled
environment agriculture

3. THE BASICS

4. PAR/PPF/PPFD
● PAR: Photosynthetic Active Radiation.
Describes the part of the light spectrum that
plants can use for photosynthesis. 400-700 nm.
● PPF: Photosynthetic Photon Flux. Describes
how much visible light is being emitted.
Measured in micromoles per second.
● PPFD: Photosynthetic Photon Flux Density.
Describes how much visible light is being
emitted given a specific area. Measured in
micromoles per square meter per second.
1265

5. Height and Density

6. DLC-Listing
● Third-party certification of quality, performance, and
safety.
● Opportunities for rebates.
● Find DLC-listed products:
https:/
/qpl.designlights.org/horticulture

7. SPECTRUM

8. Photons
● Blue: stimulates plant growth
● Green and White: canopy penetration and disorder diagnosis
● Red: used for photosynthesis and promotes budding
● Far-Red: enhanced cell expansion
~780
Credit: Taiz & Zeigler, 2015

9. Efficacy

10. COSTS & ROI

11. Credit: Cannabis Business Times, 2021

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13. INTEGRATION

14. Cumulative Effects
Adding more light cannot be done in a vacuum. If you add more light, you will also need to
add more of the other 9 parameters for plant growth.
Light CO2 Airflow Humidity Temperature
Oxygen Water
Root-Zone
Temperature
Nutrients

15. Q&A
Ask your questions
in the chat
W: surna.com/led-lights/
E: info@surna.com
P: (303) 993-5271
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