White LED vs Red Blue White LED Grow Test w/Time Lapse – Lettuce Ep.1

No Aeration vs Aeration – https://youtu.be/2cscaOpIZyU
MaxBloom X4 LED Grow light Review- https://youtu.be/IlD4nAnkLoM (Live 8/26/18)
Episode 2 (Soybean) – https://youtu.be/pgpjACVfLvA
Ep.3 (Final Results) – https://youtu.be/W39rWLGcMJM
Are my growing containers food safe? -https://youtu.be/kU891LPvEzc

The white LED brand is Roleadro. It is 115 watts at the wall. The Blurple light is 130 watts at the wall and is generic brand. Info for these lights can be found in the links below.

I used the nutrient trio from General Hydroponics. I started off with a seedling dose and then jumped to the aggressive vegetative dose after the plants had their first few sets of true leaves. I started the test off with 6 gallons of water in the container and ended with a little over 3 gallons. The entire grow was over a period of almost exactly 1 month in a consistent ambient temperature of 68F.

The PAR output was kept under 300um of light at the plant canopy with a short period of slightly over 400um in the highest spots, but was adjusted quickly. This is when the minor tip burn occurred. The PAR output on the lights was almost identical and the center PAR measurements are 1000um/6″ – 400um/12″ – 200um/18″ on both lights. The type of lettuce was “Black Seeded Simpson” from Burpee.

The time lapse camera used was a Brinno TLC 200 Pro with the kit lens. 1 photo every ten minutes. The night cycle was removed in post and the remaining clips were sped up in post by roughly 200%. If you look closely you can see most of the growth actually happens at night. The lighting hours were 17 on.

Affiliate Links: I receive a small commission if you use these links. The price does not increase.
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Smart Timers – https://amzn.to/38XBTdJ
Heat Mat – https://amzn.to/2HTyOml

Intro video to this series – https://youtu.be/Cx90nHDg4_s
Blurple Light – http://a.co/1E2NXau
White LED – http://a.co/eJ9pnTN

For some interesting growing tips and tricks, try this link

9 Ingenious Tips to Grow High-Quality Hydroponic Lettuce

💰Pay Monthly on your Amazon Purchases: https://www.shopabunda.com/?ref=growing-answers


  1. aulupinar on March 22, 2021 at 11:22 pm

    I think every vegetable requires a different colour of light, right?

  2. Digitalhunny on March 22, 2021 at 11:23 pm

    You set my mind at ease regarding my choice of already purchased white lights. This was great thanks a bunch! 🤗🇨🇦

  3. Bora on March 22, 2021 at 11:25 pm

    Thank you!

  4. FoodyLatina on March 22, 2021 at 11:25 pm

    Two years later and this video was a million times more helpful than other videos and google searches thank you!

  5. Oby-1 on March 22, 2021 at 11:27 pm

    Interesting how the total weight of both lettuces had the numbers three, four and seven. But differently arranged. Must be linked in the fabric of the Universe.

  6. Miss Renee on March 22, 2021 at 11:28 pm

    Which light do you recommend to grow vegetables? Ty

  7. Stuffnsuch on March 22, 2021 at 11:28 pm

    JMO, I think the colored lights are an advertising sales gimmick for home and novice growers. Looks like the plants did better in the white light, which is actually full spectrum.

  8. Nich Mon on March 22, 2021 at 11:28 pm

    Thank you sooooo much for this video. I am studying grow lights, in order to get a head start on my summer plants.

  9. Paul Jerryhatrick K5VOP on March 22, 2021 at 11:30 pm

    Great video thank you! My understanding of the lights has been white spectrum (5k-6500) is needed for initial growth for most plants that can be sustained but for fruit producing plants like strawberries or tomatoes going to more of a red spectrum (<3000) was better for the fruit. Anyone else understand it this way or have experience in testing outcomes? Perhaps this isn’t really an issue growing leafy veggies or maybe it isn’t an issue at all. Making my own LED light setups I am thinking I may have mostly 6000k with a couple 2700k mixed in. thoughts?

  10. Louis Castillo on March 22, 2021 at 11:33 pm

    Ayo how much for a quarter or lettuce.

  11. john smith on March 22, 2021 at 11:34 pm

    in fact, considering the weight, is necessary, but have to look at the nutrients contained would be beter ^^ Sure they are the same? need scientic tests^^

  12. Нови Сад Србија on March 22, 2021 at 11:34 pm

    Considering you grew lettuce which does NOT flower or produce fruit… its perfectly logical that it DOESNT need red light which is important for flowering and "fruiting"and not vegetation and most full spectrum leds have 60-70% of red led diodes… Just saying.. You should do some fruit grow actually … If you did send a link

  13. Jasmin Füll on March 22, 2021 at 11:35 pm

    The darker colour in the leaves under the blue red light might just be darker because they’re slightly younger/less developed in comparison to the white light ones. But that’s just a guess as a hobby food grower.

  14. TheJoker on March 22, 2021 at 11:38 pm

    Hello what camera did you use to record the footage ? Thankyou sorry I read your description

  15. Kauai Xtreme Shore Fishing on March 22, 2021 at 11:39 pm

    Cool… 1,000 comment
    Yeah. Great video

  16. paulipoika on March 22, 2021 at 11:41 pm

    Red light is for flowering plants …

  17. Eiko Huang on March 22, 2021 at 11:44 pm

    Professional grow tent manufacturer .

  18. ravvraj on March 22, 2021 at 11:44 pm

    So you used a full spectrum white light. That is obviously superior to only a Red Blue light. Sunlight is also white. But why did you use only 3000K? I thought sunlight was 6500k?
    I was looking if regular white led would work for my house plants(not lettuce or food plants) still trying to find the answer. I don’t want these weird red and purple lights in my bedroom all the time

  19. Michael Carey on March 22, 2021 at 11:45 pm

    There was more red light in the "white light" LED panel, which caused the leaf to become larger… however, despite the size of the leat, the nutrients/phytochemicals produced in the leaves are pretty constant, so the "bitter" taste in the predominantly blue light was due to these flavors being concentrated into less biomass, but equally healthy leaf as the white-grown, which actually had more red light.
    The leaf morphology (size) was affected by the spectrum. The amounts of phytochemicals responsible for taste were not, and in probably equal amounts "per leaf", but not "per gram".

  20. StationZeroOne on March 22, 2021 at 11:45 pm

    and that all for growing dope 😀

  21. milliealan smythe on March 22, 2021 at 11:47 pm

    I got a china led uvc bulb put to a banana and that was good enough for the test

  22. Hesti Darsih on March 22, 2021 at 11:47 pm


  23. Maël Coch on March 22, 2021 at 11:48 pm

    it’s so logical I don’t understand why it needs a video to explain it but ok. btw, doing an average weight with that number of plant is totally useless and unrepresentative

  24. bob bib on March 22, 2021 at 11:48 pm

    she was making sure you ate before taking another bites lol haha mutant lettuce

  25. Nathan Leenaerts on March 22, 2021 at 11:48 pm

    It would be interesting to compare dry weight

  26. Ryan Penrod on March 22, 2021 at 11:51 pm

    Size isn’t everything–just because something is growing bigger doesn’t mean it’s better. The smaller plants under the red/blue light might actually be healthier, which doesn’t matter much for lettuce but for ornamentals or cannabis it could make a huge difference.

  27. Andrew Fleming on March 22, 2021 at 11:52 pm

    nut up and do a cannabis plant.

  28. Dhewa Bhisma on March 22, 2021 at 11:53 pm

    Video yg bagus banget..

  29. R Scott on March 22, 2021 at 11:56 pm

    I just read something off Google which said white LED was no value at all in helping plants grow. I guess I’ll find out by doing ?

  30. Yi Ern Ian on March 22, 2021 at 11:58 pm

    Can you compare A: sunlight+LED at night vs B: Full LED light growth?

  31. OverGrowTheUK on March 22, 2021 at 11:58 pm

    DIY grow light Samsung diodes https://youtu.be/IvW8XR-Vp-Q

  32. Paul Campbell on March 23, 2021 at 12:00 am

    I wish they would not call "Full Spectrum" LEDs Full Spectrum when they are really "modified spectrum".

  33. SpicyShotzHD on March 23, 2021 at 12:03 am

    I watched it Too late I already bought the purple one and its too late to return it.🙉

  34. Miss Renee on March 23, 2021 at 12:04 am

    Thank you so much..

  35. emhiljohn1 on March 23, 2021 at 12:05 am

    I’m renting a tiny duplex house with no space to grow even a basil plant and thank God the first video I stumbled upon is yours because I planning to grow some herbs indoor. Please, can you help me start? Can I use ordinary florescent as grow light?

  36. Łukasz Wojtysiak on March 23, 2021 at 12:05 am

    How does this compare to growing lettuce without any LEDs? Just in the sunlight? Even if we take Red/Blue LEDs, how much more plant mass will be made in comparison to not using them?

  37. Eiko Huang on March 23, 2021 at 12:06 am
  38. aaron basset on March 23, 2021 at 12:06 am

    Thank you !

  39. Adam Rodgers on March 23, 2021 at 12:07 am

    I’m curious if flushing the plants would take away the bitter flavour. Like with weed smoking it without properly flushing causes the smoke to be harsh.

  40. Barefoot Fish on March 23, 2021 at 12:08 am

    Nice bro 👍🏽

  41. Saint Michael on March 23, 2021 at 12:10 am

    Great video. Thank you.

  42. Patricia Nelson on March 23, 2021 at 12:10 am

    What if you used both, full spectrum higher and white closer to plant

  43. nikoo daha on March 23, 2021 at 12:10 am

    This is my first year using red and blue LEDs for flower seeds, It is a week they have germinated and they seem leggy, not sure I will get a good result

  44. Robin Marquardt on March 23, 2021 at 12:12 am

    Bitter is usually healthy stuff

  45. Kenneth Kline on March 23, 2021 at 12:12 am

    I think it would have been important to dehydrate the plants and see their "true" weight. The non-green plant may have been more dense, and technically "larger" than the green one. Then burn the dehydrated mass to extract and weigh the various vitamins (copper, iron, potassium, etc) contained. The reason for the bad taste could have meant more nutrients were present.

  46. Tarsha Henton on March 23, 2021 at 12:12 am

    How many inches do the plants have to be from the lights?

  47. Liz P on March 23, 2021 at 12:13 am

    You answered most of my questions, even the taste question.

  48. Caleb Chandler on March 23, 2021 at 12:14 am

    How do I start my seeds in doors with the red blue light? Do I need a warm area or just the light? And do I need to cover them? I’m trying to start my own seeds this year and I don’t know everything so all the help would be awesome. I’ll be taking my plants outside after 6 weeks so I’m just using the light to start my seeds

  49. Thunderwings Agnstrom on March 23, 2021 at 12:14 am

    poor to me. i buied led 3 color for plant.

  50. Nats J.v.R on March 23, 2021 at 12:16 am

    I can’t help feeling sorry for (silly right) the lettuce under the red light

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