Perceive and choose the best coloration spectrum to your LED Develop Gentle (trace: solar gentle isn’t the very best) Turn into a greater gardener, Subscribe: Share with a good friend: ———————– Free Stuff: Free Backyard eBook: 24 1/2 Backyard Design Concepts: ———————– My Books: Backyard Myths:

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21 Replies to “Best LED Grow Lights πŸ’‘πŸŽ­πŸ”Š Getting the Right Color Spectrum”

  1. Thanks for this excellent presentation. There’s a lot of light info being used incorrectly in advertising and in light packaging that’s confusing, misleading, and usually results in an expenditure of limited pocket cash towards the wrong choice of light. I have to confess to being one of those types at one time in the past.

    It’s this kind of information, well presented and explained that benefits the gardening community. No pseudo β€œFarsebook” Science here.

    Thanks again for another outstanding presentation!!

  2. Hi Professor.
    I am Edgar.
    Can you advice on how many hours of light per day? It is proporcional to intensety or nonproporcional?
    Can you make video?

  3. Have been seeking the right led blend for a grow. The light strip I’m thinking of using has the same spectrogram image you use at 6:11 in your vid. On a spectrometer/chart, the Y axis goes from zero to 1. Is the 1 benchmarked by the sun? Additionally someone alluded that intensity of parts of a given spectrum might be lacking in density? that has me turned around. Is that true? Light within a spectrogram has different intensities? I would think thats reflected on the charts Y axis. Hope to hear from you, thanks.

    1. The 1 on the spectra is meaningless. The image is just a relative value and tells you noting about intensity. for that you need to look at the PPFD value.

  4. Hi there and thank you for the great video! I was looking for your thoughts or comments on a dollar store grow light. It seems to advertise a lot of the factors that you identify in your video. It’s for a single grapefruit tree that I have grown from seed in Northern Ontario – I don’t get sun in my home during the winter and the leaves are looking quite lack-luster. Its made it to a full 7.5 feet in height (after 8 years), but hasn’t flowered at all.

  5. hello, the video is very interesting. I have read several scientific articles (published on the ResearchGate website) about strawberry growing, the conclusion is that strawberry plants under blue light only, produce more flowers and strawberries than under other color or full spectrum. How can we explain this?
    thank you
    Ps: I tried to add the link to this study, but my comment disappeared!

  6. I’m sorry if you said it in the video and I missed it, but you say “Blurple”, a combination of red and blue light, is actually best for the plants but less desirable for us because it doesn’t look so good, will the addition of green light alone produce the more appealing white light, or would you still need to add other colors for that? And thanks a million for your great and easy to understand videos and internet articles!

  7. Folks, he says at the 0:30 mark that “if you just want a quick answer, head for the time stamp 8:46 . There, he says, he will “summarize his suggestions”. (he actually says the 9 30 stamp, but I think 8:46 is a better starting point for the summary)

  8. Wow great video sir thank you πŸ˜πŸ‘πŸŒ±πŸŒ»πŸŒ΅πŸ€πŸŒΌπŸŒ·πŸŒΉπŸŒ·πŸ„

  9. Excellent information! I started looking for plants light and had no idea what to look for. This should help me avoid some costly mistakes.

  10. There is too much on Growers mind already . Who cares for all of those college degree words. Hydro Farm Radiant 8 is the way to go. By all parameters it is the closest thing to sunlight light . Get 450 to 1050 true watts out of the same light. Either vented or not vented, Dimmable or 4 position power selector models are available. LED lighting has very limited light spectrum, and plants are very sensitive to color of light while HPS lighting provides full spectrum and 2 x 2 ft light reflectors of Radiant 8 cover area of 4 by 4 ft ( or even more) of growth area. Contact me and I will tell how to get pre-owned sets.

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