*Watch PART 1* of this series for further context: kzread.info/dash/bejne/mXyLyJaBlsyZmKQ.html _Check out my other reviews:_ *"1000" LED Grow Lights Shootout pt 1:* kzread.info/dash/bejne/mWqimrihhqqxdLw.html *"1000" LED Grow Lights Shootout pt 2:* kzread.info/dash/bejne/iaGesbWzg6mTeKw.html *Spider Farmer SF300 / SF600:* kzread.info/dash/bejne/hIyWtI-hk7vLgZc.html *Active Grow LoPro Max 320W:* kzread.info/dash/bejne/gneVx9Wij7CbdLQ.html *Maxsisun MG3000:* kzread.info/dash/bejne/hqtqj9lrl9zIl9I.html This UPS power station can backup a grow light! ► kzread.info/dash/bejne/mment7eBc6jXktY.html Check out my *Grow Light Cost Calculator:* kzread.info/dash/bejne/k4iju8qygL2zhtY.html _Learn more about artificial lighting and plant growth:_ ► What is PAR vs ePAR Light? kzread.info/dash/bejne/nYmkp7Ntm7iXZJs.html ► The impact of Red or Blue light on plant growth: kzread.info/dash/bejne/pZqdyqdtedispbg.html ► To avoid Tip Burn: kzread.info/dash/bejne/mXyLyJaBlsyZmKQ.html

@laultimaverdad1187

4 жыл бұрын

Excellent!!!

@erict9392

4 жыл бұрын

it looks hard to do but hate the bugs outside

@liquidlar

2 жыл бұрын

This video had been super useful for me since I use the same lights in the vid I have been able to use the light data to grow my plants haha.

@AndroidSamsung-qz9pl

Жыл бұрын

What is bolting?

@Albopepper

Жыл бұрын

@@AndroidSamsung-qz9pl When plants flower when we don't want them to, we call that bolting. Annual cool season vegetables including lettuce and spinach will bolt as days grow longer in summer. Bolting usually brings on bitter flavors in the foliage as will the usually hot temperatures that come along with longer days. Hot temperatures also cause the flowers to come on more quickly as will dry soil. Some biennial vegetables bolting is induced by a cold snap during a plants normal vegetative stage. Prone to bolting include rhubarb, Chinese cabbage, and mustard greens. Some biennial vegetables, (those that normally produce only vegetative structures their first year, flower and seed their second year), may bolt during the first growing season in response to a cold spell. Most biennial vegetables, including onions, carrots, heading cabbage, have to reach a certain stage of growth before they are able to start the flowering process. But turnips are sensitive to cold as soon as they germinate. Bolting cannot be reversed once the flowering process has begun, so replace affected plants with heat-tolerant summer crops or wait until later summer to replant for a fall harvest.

I just love how you question things that may seem like they don't make sense at first and test it regardless. No question is a stupid question. I learn a ton from you.

you know, sometimes a person just plants their garden and lets it do its own thing ,but this experiment really makes you appreciate the true science involved in what we may take for granted. i really enjoyed the technical science, although i'll never remember the terms.

@Albopepper

6 жыл бұрын

Thank-you for your kind words! The videos are here, so you always have this resource available to you!!! xD

Ps. I wanted to say that your your teaching style is great. I find that you explain complex things in a very basic manner that anyone can understand. Even as a scientist by profession who understands most of these concepts, I'm not even mad at your pace. They always told me in my studies that you only truly understand something when you can make a layman understand which I think you do great. Subbed. Keep up the good work sir and keep these interesting experiments coming!

I just started to learn about indoor growing and lighting. I have to say this is my favorite channel I've come across. Keep up the good work, and I cant wait to learn more from you.

Oh, that was so useful! I'm using 24h leds and got the same picture like yours, deformed leaves and burns. I definitely knew I made something wrong, but now I'm pretty sure I understand the reason.

I would love to test this in the other way. Increase light intensity to a huge maximum (with matching intense cooling), and shorten the light cycle as much as possible, to increase periods of darkness and growth. Perhaps we could condense the day light cycle into a 3 hour window for example, allowing for more frequent dark cycles and as such quicker crop growth.

@Albopepper

2 жыл бұрын

You should test it out and share your results!

So lettuce, at least the variety you grow, is not very sensitive to light cycle! Good to know! Thank you a lot for taking so much time doing this experiment!

@Albopepper

6 жыл бұрын

Thanks for taking time to watch!

@ikyitching

6 жыл бұрын

Thanks! You provide important information! These experiments should be repeat by some national labs!

Very much enjoying your process. Just getting started in indoor gardening and until now, haven't found anything this data driven. Thank you!

Another great experiment that very simply explains a complex theory. Thanks.

@Albopepper

6 жыл бұрын

Thanks so much for watching! :-)

totally different light set ups with very similar results. thanks for the science lesson!!!

@Albopepper

6 жыл бұрын

Thanks Kramer! This was the most scientific method I could come up with to demonstrate DLI in practical terms. :-)

Your experiments are always appreciated so much, sharing knowledge like this is extremely valuable. Ty so much for what you do.

Excellent presentation of all the information!! And really well thought out experiment. Very much enjoying these.

@Albopepper

6 жыл бұрын

Thanks Nigel!

I haven't even watch the first video to the end but a fan already

You should be a Professor! I learnt many concepts of lighting which i could not understand. The experiements were well designed and the resukts were explained clearly. Have you published your data? It has all the elemnents of a high impact publication.

Admit it, your real name is SUPER MARIO....ISNT IT ;)

@Albopepper

5 жыл бұрын

It'sa me!

@alexacquaah4074

4 жыл бұрын

*i knew it!*

Very interesting experiment (ofc accounting for the limitations of the case)! Keep it up!

@Albopepper

6 жыл бұрын

Thanks for your support! :-D

I’m starting a microgreen channel soon and plan to replicate your experiments! I appreciate the science behind everything you do, reminds me of my gen bio 2 class! Well done

Good video. I asked my self about that for a while already, nice to see your experiment results. Thanks

@Albopepper

6 жыл бұрын

Thanks, I appreciate your support! :-D

Wow, he just came up with a new variable that was hided out of sight all this time... amazing!

You're videos are awesome, bro. Keep it up. Quality content. Cheers.

Great experiment, thank you for creating informative and entertaining content to share with all of us - awesome work!

@Albopepper

6 жыл бұрын

Thank-you Hobes! I appreciate it. :)

In this world people who have an opinion are a dime a dozen. Those who put out the effort to find the facts are true gems. Albo Pepper... you sir are a gem! On a different note, have you ever watched my name is Earl? You could pass as his brother with that mustache. Wishing you the best Karrma for all your videos and work. Thumbs up!

You were So professional in your approach, I subbed right away. Thank you! It´s winter soon, and I can´t buy commercial veggies, so this is brilliant. Let´s Grow :)

I love how you are bringing science into your videos. It would be awesome if you could have triplicates of each treatment :D

Thank you for serious and academic content, and for using PPFD and DLI!

That was very informative mate. Nice and straight forward.

Awesome Test! Thank you for doing this.

Such a cool experiment! All the sort of things I'd love to try. Thanks for sharing. -Hank

@Albopepper

6 жыл бұрын

Thanks Hank! I appreciate your support. :-)

Just found your channel but im hooked..... thank you from.the UK !

Great experiment. I am growing lettuces with NFT system myself in Indonesia. The pH level that I always maintain for lettuces is 5.5 - 6.3. You may want to consider this pH aspect as well.

Glad you did this comparison. I sure don’t put in the time/effort to find it out for myself

Exactly what i was searching for. Thanks

Great video, sir. Thank you very much. Greatings from Argentina.

Thanks! Helped me a lot to understand things further. I would love to see such tests with Basil, as I'm struggling with my indoor setup and I'm sure I'm not watering to much / less and ferts should be good, at least in my opinion compared to outdoor gardening :)

Great video man!

This was a glorious experiment

Lovely channel ! All you need to know about plant grow lighting, explained cristal clear 👍 Albo!

this was awesome love these vids bro!

@Albopepper

6 жыл бұрын

Thanks man!!! :-D

you are the best mate! keep it going!

I love these experiments! Thank you. During the winter I am an avid indoor grower and this info is so helpful. :)

@grubsgarden7364

6 жыл бұрын

It gets cold but we don't get snow here, every year I appreciate the winter season more and surprise myself in what I am able to grow (although there are failures, to be sure, no luck with cauliflower). I only have one north facing window though and it's not a place I can set up an indoor garden, but I do grow on my north facing balcony in winter too.

@volvo09

6 жыл бұрын

Same here, I absolutely love Albo's experiments!

@Albopepper

6 жыл бұрын

xD Thank-you for your support!

@Albopepper

6 жыл бұрын

Thanks Punky! I'm glad that this info was helpful. :D

@punkyroo

6 жыл бұрын

Grub's Garden It sounds like you are having success despite having some limitation. :) Very cool!

Thanks a lot for explaining the complex concepts with such clarity. It will surely help my plants grow better.

@Albopepper

4 жыл бұрын

Thanks for watching Nisarg! I appreciate your positive feedback. :-)

Awesomeness work, dude! You're the best! You're considered everything! Thanks much!

@Albopepper

4 жыл бұрын

Thanks so much for watching Andrej!

Very informative video as usual. Thank you very much.

beautifully explained!

I use read a study about this , crazy your experiment matches the test

@Ahoy123

2 ай бұрын

elo do u still remember the study name?

This was amazing. Thanks.

@Albopepper

6 жыл бұрын

Thanks for watching Scott!

Great experiment guys 🤗

I dont know what you just said but I enjoyed it 😂😂😂

Super awesome video. Helpful for understanding my aquarium lighting a bit better too

Aweome Video Mario! you rock!

Thanks bro, love these experiments!

@Albopepper

5 жыл бұрын

Thanks for watching MTech! I appreciate your support on my channel! :-)

Great Experiment Bro !

@Albopepper

6 жыл бұрын

Thanks man!

Great video, thanks.

Wow, great job

I found that lettuce tip burn is greatly reduced on indoor plants by growing them in half-strength nutrients.

@constantinwossala9926

4 жыл бұрын

always, or introduce gap weeks.

Love the shirt! It's what plants crave!! Lol. Thanks for making such informative videos, sub'd!!

You always have exactly what I'm looking for... Thanks

@Albopepper

3 жыл бұрын

I'm glad I can help Chris. Thanks!

A Super Plumber turned Gardner. I dig it.

Very insightful, the only factor is missing is the humidity.

Thanks so much for this video!

@Albopepper

6 жыл бұрын

Thanks for watching Candace. I appreciate your support on my channel! :)

nice experiment

DLI wonderfully simple explained, new sub

@Albopepper

5 жыл бұрын

Cool! Welcome to my channel!!! xD

Thank you you for these information

Thank you, very informative :)

@Albopepper

6 жыл бұрын

Thank-you for watching, as always!

Good job! :)

What a good video, very useful thanks for sharing it. I think that if we use lights with less consumption (less lumens) and closer to the lettuce, we could get the same target DLI and with the same electric consumption per gram as lettuces 1 and 2 or maybe less.

@Albopepper

6 жыл бұрын

Thanks Max. Any little bit of extra efficiency is worth it! :)

Well done.

Great information. I also experimented with 12 varities of lettuce. Tom Thumb suffered tip burn.

great video..it's so informative..well done

@Albopepper

5 жыл бұрын

Thanks for watching and visiting my channel! xD

Awesome, thanks

The Inverse-Square Law of light This law states that for every foot below the reflector the light should loose 75 percent of it's energy due to dispersion. So 1000 lux at 1 foot is 250 lux at 2 foot. I have taken a lux meter and find that I am only loosing 50 percent per foot. I am thinking the reflective walls are keeping the numbers up. Also, if you are have multiple lights when you just below the reflector you only get light from it. As you move down you get light from multiple lights. This applies to HPS and Metal Halide due at the side bouncing of the wall is as bring as just below it. Where LED blow all their light down.

Really good👍🏻

Wonderful video. Thanks heaps for this. :)

@Albopepper

5 жыл бұрын

Thanks for watching Julia! :-D

Excellent 👍

And just like that! I don't know ish about growing. :) Great video. Thanks!

@Albopepper

4 жыл бұрын

LOL, thanks for watching!

Cool experiment, I may dial mine back a bit. More is not always better.

Great information! Love the video! Found a small typo on 7:14 with the slide title

Great science lesson. I'm really impressed! I already have a DIY aquaponics system and I'm trying to mimic your setup #3 (24hr). Is it a good Idea to add a diffuser on LED white lights instead of bringing it up? Just like an ordinary LED bulb with white plastic that covers it to diffuse. I have limited space and I can no longer move it up. Thank you!

I don,t know any body that has a lettuce shirt. You could be the new and improved Mr. Green Jeans.

Thank you for the knowledge

@Albopepper

4 жыл бұрын

Thanks for watching!

great video! It'd be really appreciated if you put a ruller in the back of each growing box, since you're using the same pots for all of them. the difference in height would be easier to differenciate between plants, and you could use that info for further analysis. It's just a detail! Greeing from Argentina!

Awesome and super informative video! I noticed your plants grew super fast as well. Would you mind sharing what grow medium/wattage LED/fertilizer you use in you setup (I’m assuming DWC)? I’ve been working on my own but my plants don’t grow as quickly. Thanks!

great experiment

@Albopepper

5 жыл бұрын

Thanks Mark!

Thanks for the great video and test. Can you please direct me to what the composition of your grow buckets are? How are you watering these and what nutrients does it need as well?

Extremely informing

Thank you sir your content soo helpfull until this day ❤

Muito bom seu trbalho parabens

this was quite an interesting study. I'd like to see it replicated on a larger scale.

@Albopepper

6 жыл бұрын

So would I Mr Gracian. Hmm... looks like you have a busy Winter ahead of you! Let me know how your test turns out! ;-P

very helpful,, thank you

I'd love to see a continuation where you get to shorter and shorter light periods with same DLI. For lettuce, I'm curious where the watt/oz maximum is.

Hi, what was the starting pH and EC of your experiment ? Also, what nutrients did you use? Thanks so much for sharing this info. Also, have you done any experiments w shorter light cycles? 5 min on, 5 min off vs 5 min on 2 min off, etc ?

Great....

Thanks for the 2 interesting videos. I've never had tip burn until I received an aerogarden as a gift. My kratky lettuce is fine but my aerogarden lettuce always has tio burn. I've tried over and over to experiment with same nutrients and same water and duration. The only difference is that light included on the aerogarden. So after watching your video I think my hunch is correct about the aerogarden light.

I like your videos thanks

@Albopepper

6 жыл бұрын

Thanks Ryan! xD

Very cool experiement

@Albopepper

2 жыл бұрын

Glad you liked it. Thanks for watching! :-)

When looking at growth per watt, did you consider that with the 24 hour light cycle, the distance of the light means the coverage area is greater, so you may have been able to put more plants under the light than the other two?

@midwestmangos2452

4 жыл бұрын

Exactly, or as I mentioned in my comment just use a light that offers a dimming method to reduce the power usage instead of wasting light (as spread out light has greater chance of losses even if used for more plants like you mentioned.

Great experiment. There appears to be some additional light exposure on the plants due to short walls. Could this influence the results?

Omg your a saviour

Hi, like your informative content. Can you please specify the climatic conditions for lettuce to grow, ie the optimum humidity and temperature. Keep up the good work. Lots of love from Goa.

@Albopepper

6 жыл бұрын

Hi Clinton. I would recommend checking out this resource from Cornell: www.cornellcea.com/attachments/Cornell%20CEA%20Lettuce%20Handbook%20.pdf