THE TRUTH ABOUT GROW LIGHTS | HOW WE CAN DO IT BETTER WITH HOUSEHOLD LED LIGHTS | SCIENCE OF LIGHT

[@loganleborgne420]

3500°K all along is the best way to go...good for veg and bloom!

[@Typeownz]

Great vid, really apreciate all the hard work you put into these video's while also sharing you're knowledge for free!

[@jansondennis2438]

im running optictech 650 it has 3 separate channels white blue red and uv with deep reds 👌 all on a programmable controler. in veg reds come on first 3min to wake them up. then the white and blue slowly ramp up and reds reduce to 15% .after 17hrs white and blue reduce and red ramps up to put the plants to sleep.. sunrise sunset optictech fully programmable its a great bit of kit always get great results 👍

[@humblegrowth]

This light sounds AMAZING!! I'm going to check it out for sure! Thank you

[@subhumanaudio]

You’re talking about optic grow lights. Not optictech I think everbody knows about those.

[@ioannismano311]

Paused it, got it for free, and im back. Thank you so very much

[@humblegrowth]

Glad to hear it! and you are so welcome!

[@copperfireflies]

This is so helpful, I’m still setting up my inside garden. I have a few lights and was needing to add a few more. This is perfect timing BEFORE I spend more money on the same lighting. This version of lights will be ,well….way more fun to use. Thank you for everything you’re doing for a newbie like myself. 😊🌱 P.S. I also paused and light science really does rock

[@humblegrowth]

Glad to help! :)

[@hydriodic]

Can you do par meter tests or something to show how they compare, please? Maybe a par map or something?

[@humblegrowth]

That would not actually show anything. What I am suggesting in this video is to use multiple custom wavelengths that you change throughout the grow to optimize your grow. You can do this using a standard led grow light just like I do in the video then add uva, deep red and whatever wavelengths you would like. I'm not sure what exactly I would be testing?

[@mugnuz]

next video: how to measure light with houshold items...;D

[@nuggsunlimited]

I have a par meter and will test this out!!!

[@humblegrowth]

@@nuggsunlimited Awesome! thank you! can you test the PAR following the parameters set in the free book I giveaway at the beginning. Meaning higher (blue)wavelengths during early growth, leaning more towards red as the plant grows. The point of this video is to illustrate that you can use "other" lights to subsidize your grow light. Or if you want to use shop lights instead to fill out the photon density then that works too.

[@nuggsunlimited]

@@humblegrowth I’m on it 👍🏾

[@AlmostOrganicDorset]

Fascinating, took me back 30 years to the time I had heavily planted aquariums, we struggled back then. I am now growing lots of veg and almost self sufficient, last couple of years I have started off seeds under a 4 feet, 6,400k led strip with mixed results, some have gone leggy quite quickly, would the addition of a blacklight strip either side help?

[@humblegrowth]

Absolutely, the UVA light would gently fill in the PAR gaps and keep your plant more compact. They are leggy for 1 or 2 reasons. 1 not enough light or light is too far away. 2 the light color contains too much red light which will promote stem growth rather than leafy growth, but at 6,500k that should not be the case.

[@ObafemiOso]

This was incredibly insightful and thank you for the free ebook! Excited to read it! What would you do for just a bunch of tropical house plants? No real flowering happening just philodendrons, alocasias, monsteras, etc?

[@humblegrowth]

I would get whatever lights are most pleasing for you to have in your space. With house plants you don't really need to worry too much about the light temperature. The cooler you keep the light color the bigger the leaf's will get but the overall growth will be a bit slower. 4000k is a pleasant light color for interior if that helps.

[@mdspider]

Glad I found the channel! I will check to see if you have a DIY build video. Thanks.

[@humblegrowth]

Glad you found me too! I have a couple builds, my latest is the aeroponic tower garden. Today I am working on a low pressure aeroponic garden build. Keep an eye out for that one, should be a great garden.

[@racebiketuner]

You should be running the photobiology program at Utah State University. Obviously.

[@TheExperimenthair]

Bro, ur killin it. Wow!! Ty😊

[@humblegrowth]

No Problem, thank you!

[@subhumanaudio]

Are you running those 2 uva bars 24/7 during lights on? Would be nice if sombody would make a 430nm light bar.

[@johnsaye1959]

This is fascinating, thank you very much and also thank you for the book

[@humblegrowth]

Glad you enjoyed it!

[@relaxationmusicwithloki8622]

Hi, I'm about to start hydroponic garden in a grow tent. I'm a beginner, i have a 10x10 tent, is there a kind of light that i can use for full cycle ( from starting seeds to harvest) trying to do it cheap way, and less hassle changing lights. Thank you

[@ArnoldDavis-b9o]

The sun is the best grow light

[@humblegrowth]

100% Hence the name I chose for my e-book, "Synthesizing Sunlight" Sunlight is the real star of the show.

[@stormjorgenson807]

Wow, you're so insightful

[@Etoile333-y6o]

You’re awesome dude

[@humblegrowth]

You are! and Thank you!

[@heinrichbosch4040]

3:38 Most of my plants definitely got stem elongation but I doubt it was the lighting but rather waterlogging.. I think my rockwool was just too wet. Also didn't have a dark space to start the seeds in so they had light from day one. (natural) You don't possibly have a discord channel or something similar for growers for some more direct help?

[@humblegrowth]

Watch that waterlogging, I've lost many plants to soaking wet rockwool! If you have ANY stem elongation for any reason, lighting related or not, adding blue wavelengths and removing red wavelengths will help with the elongation. 9/10 elongation is lighting related, and easily fixable with a slight wavelength adjustment. Starting seeds in a light place is a recipe for weak, elongated stems for sure. I will put mine in a drawer, closet, or cabinet just to get started for the first few days. as soon as you see them peak through they should be in light. oh and sorry no discord, I do have a e-mail address that you can use [e-mail] That is a more direct line to me. glad to help

[@heinrichbosch4040]

​ I sent you an email but seems it doesn't want to go through.

[@stormjorgenson807]

Over watering doesn't elongate stems..... it kills leaves and stunts growth

[@MarcusWitcher-q7h]

Wait so what light causes robust and compact growth

[@humblegrowth]

Blue light keeps things compact, the addition of red light will accelerate photosynthesis and too much red light will cause elongation.

[@MarcusWitcher-q7h]

@@humblegrowth thanks I downloaded the book and will keep it in mind

[@patizonfarm]

Please, what is the best led light spectrum (K) for microgreens leaves 5-7 days under light - life cycle.

[@joels9172]

5000k

[@diezelvh4133]

6000k with enhanced spectrum.

[@humblegrowth]

I use 6000k for microgreens. 5000k will likely grow faster, but 6000k will be hardier, your choice. :)

[@hadleymanmusic]

Saw one video said green plant cant accept red light. But if you take a bunch of plant greens and boil it and shine a light through the " phil" its red.

[@humblegrowth]

I don't know who is saying plants can't accept red light, but that is completely untrue. Green light on the other hand...

[@diezelvh4133]

Light can be a wave or a particle.

[@humblegrowth]

well....yes, but technically the wavelengths are actually made up of tiny particles called photons. So, yes, they are both.

[@keystonecannaflage]

Nice

[@humblegrowth]

thank you

[@Deltaforce650]

Everyone here needs to watch a video ab grow light spectrum from bruce buggbe or even migro arrays buggbe talks ab color of wave lengths and effects on plants... and migro did the par testing for basic led lights. The test showed they did very little for any type of photosynthetic response you are wasting energy using house hold leds or light bars-shop bars because the par isn't higher or near the comsued watts at all

[@humblegrowth]

I would have totally agreed with this, before I actually tried it .....

[@humblegrowth]

I would have totally agreed with this, before I actually tried it. Watch the most popular video on this channel if you want my cynical take on it . Then I actually tried it, and I ate my words.

[@humblegrowth]

Also, the acronym you are looking for is PPFD. Shop lights and household led lights can all fall in the par scale. The vast majority of visible light contains PAR. It's the photosynthetic photon flux density that lacks in non optimized led diodes. The wattage to PPFD isn't nearly as good with household LEDs. Still though, they work ... Don't dog it till you try it.

[@Deltaforce650]

@humblegrowth give it a search on KZbin migrow led diy led test he shows it's takes ab 14, 13 watt led bulbs to produce 1.62 ppfd/w efficiency that dollar cost average for buying the lights alone is not worth it compared to dedicated side lighting. Not even mentioning the 3 year total cost for running with off time included wich is 536$ roughly...I understand the point in your video ab red light being bad for pre flowering and I wish more side lighting or big light company's would had more varible options but the stuff not made for growing isent worth using. I'd recommend 1 green light it would have more efficiency and PAR than you would be led to believe green light penetrates more than any light spectrum. Making that green light more efficient by nature,

[@Deltaforce650]

@humblegrowth give it a search on KZbin migrow led diy led test he shows it's takes ab 14, 13 watt led bulbs to produce 1.62 ppfd/w efficiency that dollar cost average for buying the lights alone is not worth it compared to dedicated side lighting. Not even mentioning the 3 year total cost for running with off time included wich is 536$ roughly...I understand the point in your video ab red light being bad for pre flowering and I wish more side lighting or big light company's would had more varible options but the stuff not made for growing isent worth using. I'd recommend 1 green light it would have more efficiency and PAR than you would be led to believe green light penetrates more than any light spectrum. Making that green light more efficient by nature

[@Bdub-o1x]

pigeons bro

[@eggspanda2475]

wheres the data ?

[@humblegrowth]

in the free e-book synthesizing sunlight! I'm a lighting expert, what data are you looking for in particular?

[@eggspanda2475]

@@humblegrowth Watts , coverage, ppfd etc

[@humblegrowth]

.... I think people are missing the point.... I am suggesting in this video that people use additional lights, like UVA, deep red, color changing led bulbs, strip lights and shop lights to both build out and add to their current setup. This is to fill out the PAR during times when the plant needs different wavelengths. This means that the light would be changing PPFD, PAR, and wattage thorough the entire grow... If you add lights to your current full spectrum light like i do in the video then I would be testing my ac infinity or mars hydro light with my additional lights, is that what you want to see? or do you want me to not use a grow light and just use shop lights and the color changing strips with the uva and deep red lights?

[@humblegrowth]

the coverage depends on placement to the plant and how far apart the lights are,. this video was exclusively about wavelengths and photosynthetically active radiation.

[@bulllee51]

Check the Par and check the Spectrum because I don't think that will work with her colored lens so what you telling me is that I can paint the lenses blue or red and I will get I will get results from a painted lens light LED light that's what you're telling me

[@humblegrowth]

This is a very confusing comment if I'm being honest. Ok, let me break this down. I don't think painting the light will work, nor do I ever suggest that. Because this would have no effect on the radiation, only the wavelength. Would be an interesting experiment though. The PAR is adjustable, that is the point of the custom light. Wavelengths are fixed with grow lights, hence the superiority with a custom light. You can also add as many as you need to fill out the PPFD. If I measured the PAR it would simply show that I am adjusting the wavelengths to deliver the optimal PAR during every stage of growth. That PAR reading would PROVE that a custom light is better. Try it friend, then comment back.