LED Grow Light Guide and Considerations Before Purchasing
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LED Grow Light Guide and Considerations Before Purchasing |
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This Video Uploaded At 16-01-2023 15:00:11 |
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LED Grow Light Guide and Considerations Before Purchasing
Professor DeBacco
LED Lights Gaining Popularity
Many growers think that LED lights are the only option.
While LED lights are popular there may be more options to consider than some growers realize, even with-in this category.
Also, there are other competitive light sources that growers may want to at least consider before investing in their lighting.
LED Light Category
Goal is to use full spectrum LED lights
Plants can benefit from more than just PAR when it comes to growing and producing secondary compounds.
Avoid high PAR “purple” LED lights
Makes daily plant checks more difficult
Limited spectrum even though it focuses on Ps spectrum
LED Light Considerations
Less Heat Output
*This does not mean NO heat output
Longevity
Compared to other lights sources the hours that LED lights produce 80% of the original output is typically longer.
In some cases much longer (HPS = 5,000 hours and LED = 75,000 hours
Avoid internal fans
If a light requires internal fans and the fan fails it will cause overheating and ultimately light failure.
Typically the mechanical fans will fail sooner than the electronic diodes
LED Coverage Area
Growers need to check the PPF map for any lights they are considering as often with LED lights there is less coverage area than other high intensity lights they may have used in the past.
Also, check the suggested mounting height from the plants
Often a reduced distance from the plant tops can also limit the coverage area.
1:1 Replacements
Most growing areas (especially flowering areas) are based off the use of HPS (High Pressure Sodium) lights.
Few LED lights are considered to be a 1:1 replacement for HPS lights
This is especially true to the 1000watt HPS lights
However, there are some models being developed to allow for this easy replacement as grower decided to change from HPS to LED.
*Just be ready to pay a high upfront cost for these types of lights and be willing to adjust your growing conditions.
LED Custom Spectrums
This is a case where the lighting technology is getting ahead of the plant science.
Knowing the “best” lighting spectrum recipe is still being researched.
Research is indicating that UV and far red light have a impact on plant growth and development.
LED Panels
Most common type of LED light fixture
Typically include heatsinks and a driver as a single unit
LED Bars
LED bars are slightly less expensive than panels
Single bars should be used in small growing areas or as additional supplemental light source.
The shape makes them a good choice for a smaller rectangular growing space such as a 4ft. X 2ft. tent.
Multiple bars linked together can be used in larger scale operations
LED Bulbs
LED bulbs are used to be an easy replacement of CFL bulbs.
Growers may use these for mixing and matching spectrums, but a reflective hood would be recommended to increase efficiency.
LED Light Warnings
Technology is continuing the improve at a rapid rate
Current technology is ahead of the plant science
*Particularly when it comes to spectrum recipes
The coverage area for each light is important as sometimes the reduced plant to light spacing can limit the coverage area
The cost of the light needs to be considered since most of the time good lights are not cheap and cheap lights are not good.
Some research is showing that leaf temperature can have an impact on plant production so if you are switching from a high intensity lighting (such as HPS) you can expect differences.
HVAC system changes are likely
Link to Lecture Slides: https://drive.google.com/file/d/1ILCQd9G9x_pVvkI2DF04ugBzUAJqw_gV/view?usp=share_link
420 Magazine Source Content by Slide Title:
Title: LED Grow Light Guide and Considerations Before Purchase
https://www.420magazine.com/community/gallery/mars-hydro-sp3000-led-full-spectrum-with-lm301b.1777081/
LED Light Category
https://www.420magazine.com/community/gallery/led-lighting-fixture-balance-jpg.1824371/
https://www.420magazine.com/community/gallery/upgraded-led.1847549/
https://www.420magazine.com/community/gallery/grow-with-medicgrow-smart8-spacementgrown-day63-jpg.1873252/
LED Coverage Area
https://www.420magazine.com/community/gallery/grow-with-medic-grow-ez8-led-grow-light-joheim-20210713_234930-jpg.1851056/
LED Panels
https://www.420magazine.com/community/gallery/33b0ec04-545a-4adb-b596-5508847598a1-jpeg.1808644/
LED Bars
https://www.420magazine.com/community/gallery/mars-hydro-sp6500-led-grow-light.1798619/
LED Bulbs
https://www.420magazine.com/community/gallery/012_copy-jpg.1754682/
*Due to the description character limit the full work cited for "LED Grow Light Guide and Considerations Before Purchasing" can be viewed at... https://docs.google.com/document/d/1Kyw5k2GMfnhe2ggeNEbNG7zLMKce0CHo/edit?usp=share_link&ouid=104237452697237972847&rtpof=true&sd=true |
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