![Dr MJ Coco](/img/default-banner.jpg)
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Dr MJ Coco
Приєднався 20 лип 2018
“Grow Your Own, But Don't Grow Alone”
This channel is dedicated to “The Science and Practice of Growing Cannabis”!
We are dedicated to bringing reliable and scientifically accurate knowledge to home growers. My videos and all of our resources at CocoforCannabis.com go through a peer review process.
I have a Ph.D. and am a university professor. I do academic research in peasant communities, where I have lived and worked with farmers for years. I have graduate level training and have taught university courses in horticulture.
I grow cannabis indoors in coco coir and perlite. I have done research in the chemistry and biology of soil-less horticulture. I wrote “Coco for Cannabis: A Grower’s Guide”, which is published by Green Harvest Press and is available through Amazon.
The Grow Light Guide is the latest addition to Cocoforcannabis.com. Based on extensive research, we developed the Grow Light Calculator to allow home growers to analyze Grow Lights & I am doing independent PAR testing.
This channel is dedicated to “The Science and Practice of Growing Cannabis”!
We are dedicated to bringing reliable and scientifically accurate knowledge to home growers. My videos and all of our resources at CocoforCannabis.com go through a peer review process.
I have a Ph.D. and am a university professor. I do academic research in peasant communities, where I have lived and worked with farmers for years. I have graduate level training and have taught university courses in horticulture.
I grow cannabis indoors in coco coir and perlite. I have done research in the chemistry and biology of soil-less horticulture. I wrote “Coco for Cannabis: A Grower’s Guide”, which is published by Green Harvest Press and is available through Amazon.
The Grow Light Guide is the latest addition to Cocoforcannabis.com. Based on extensive research, we developed the Grow Light Calculator to allow home growers to analyze Grow Lights & I am doing independent PAR testing.
Mars Hydro FC4000 EVO PAR & ePAR Tests and Review
The Mars Hydro FC-4000 EVO is their first LED bar array fixture designed for 4’ x 2’ grow tents! There are not many lights designed for those popular tents. Plus, the FC 4000 Evo features the very efficient Samsung LM301h EVO diodes, and you can control it with the Mars Hydro App! I expect that it will be a popular grow light - but my tests reveal that you may not want to run it at full power!
I ran it through 4 PAR and ePAR tests. It produces impressive PAR and ePAR maps! I do a thorough analysis and show you how you can get the most out of this light!
Congratulations to Fabio Filipe - Winner of the Premiere Giveaway!
Use Discount Code CCFC on www.mars-hydro.com/
Find the complete test report and the Grow Light Calculator in the www.cocoforcannabis.com/ Grow Light Guide.
0:00 Introduction
1:35 Unboxing
2:47 Hanging and Turning on
3:24 Diode Count and Power
4:12 Mars Hydro FC-4000 EVO Product Page
4:42 CocoforCannabis Grow Light Calculator
6:00 Official PAR and ePAR Tests
7:21 Official PAR and ePAR Maps and Data
9:52 Optimized PAR and ePAR tests
10:59 Optimized PAR and ePAR Maps and Data
13:28 FC-4000 EVO Test Report
15:00 My Review
15:36 Dimming Test and Operating Temperatures
17:04 Conclusion
I conduct independent impartial grow light testing. I present the data that I gather during my tests. The opinions and recommendations that I offer are based on my experience with indoor horticulture and horticultural lighting.
The manufacturer provided me with the light fixture to test and review. I always retain the right to give honest opinions about the products that I review. I do not offer manufacturers exclusivity or give them any editorial control over my reviews. The opinions and analysis are my own.
Everything at CocoforCannabis.com is in the interests of growers and in the Spirit of Collaboration. You support our work by following our links and using our discount codes. Grower Love -MJ Coco
I ran it through 4 PAR and ePAR tests. It produces impressive PAR and ePAR maps! I do a thorough analysis and show you how you can get the most out of this light!
Congratulations to Fabio Filipe - Winner of the Premiere Giveaway!
Use Discount Code CCFC on www.mars-hydro.com/
Find the complete test report and the Grow Light Calculator in the www.cocoforcannabis.com/ Grow Light Guide.
0:00 Introduction
1:35 Unboxing
2:47 Hanging and Turning on
3:24 Diode Count and Power
4:12 Mars Hydro FC-4000 EVO Product Page
4:42 CocoforCannabis Grow Light Calculator
6:00 Official PAR and ePAR Tests
7:21 Official PAR and ePAR Maps and Data
9:52 Optimized PAR and ePAR tests
10:59 Optimized PAR and ePAR Maps and Data
13:28 FC-4000 EVO Test Report
15:00 My Review
15:36 Dimming Test and Operating Temperatures
17:04 Conclusion
I conduct independent impartial grow light testing. I present the data that I gather during my tests. The opinions and recommendations that I offer are based on my experience with indoor horticulture and horticultural lighting.
The manufacturer provided me with the light fixture to test and review. I always retain the right to give honest opinions about the products that I review. I do not offer manufacturers exclusivity or give them any editorial control over my reviews. The opinions and analysis are my own.
Everything at CocoforCannabis.com is in the interests of growers and in the Spirit of Collaboration. You support our work by following our links and using our discount codes. Grower Love -MJ Coco
Переглядів: 10 687
Відео
Cultiuana CT-800 PAR & ePAR Tests and Review
Переглядів 4,9 тис.8 місяців тому
The Cultiuana CT-800 is a foldable LED Bar Grow light with about 800-watts of power. The clear selling point for the CT-800 is the cost. It is considerably less expensive than similar models from other brands. But Value is about more than just Cost! In this video, I explore Grow Light Value as I run the CT-800 through 6 PAR and ePAR tests. I compare the results to two of the most popular grow l...
Spider Farmer SE7000 PAR & ePAR Tests and Review
Переглядів 9 тис.9 місяців тому
The 2023 Upgraded Spider Farmer SE7000 is a large LED bar fixture with 730-watts of power. It features the Samsung LM301B diodes and is among the most popular fixtures in its class. Many growers have asked me to test it! I run it through 6 PAR and ePAR tests in 5’ x 5’ and 4’ x 4’ areas for growers with and without supplemental CO2. It performs well in my tests, but I was surprised by some thin...
Medic Grow Smart 8 Plus PAR & ePAR Tests and Review
Переглядів 7 тис.11 місяців тому
The Medic Grow Smart 8 Plus is an upgraded version of the very popular Smart 8. It features the industry leading Samsung LM301h diodes. I tested the original Smart 8 last year and was impressed. Like all Medic Grow fixtures, the original Smart 8 performed very well and is an incredible value. The new Smart 8 Plus is somewhat more expensive, and I was curious if the performance improved enough t...
Mars Hydro FC1000w PAR & ePAR Tests and Review
Переглядів 14 тис.Рік тому
The Mars Hydro Smart FC-1000w is the largest light that I have ever tested! I don’t mean the most powerful, I mean it is physically huge! Up to 6’ long with the rail extensions, but it can also fit in a 4’ x 4’ space! I run it through 8 PAR and ePAR tests in 5x5. 4x4, and 4x6 coverage areas! It sets records and has some surprises! Use Discount Code CCFC on www.mars-hydro.com/ Find the complete ...
ViparSpectra XS1500 Pro PAR & ePAR Test and Review
Переглядів 26 тис.Рік тому
GIVEAWAY DURING THE PREMIERE! Wednesday May 31st at 8pm ET - 5pm PT The NEW ViparSpectra XS1500 PRO is a small grow light that is generating a big buzz in the indoor growing community! ViparSpectra has bucked the trend we have seen in the last several years and is doing something that most other manufacturers have given up on… They are using Lenses!!! Is it a gimmick or the next great trend in ...
Spider Farmer G8600 PAR & ePAR Tests and Review
Переглядів 11 тис.Рік тому
The Spider Farmer G8600 is a powerful grow light at an incredible price point. It is an amazing deal, but my tests revealed an issue that will be a challenge for many growers. I run it through 5 PAR and ePAR tests in a 5x5 area at different heights and dimmer positions for grows with and without supplemental carbon dioxide. Use discount code CCFC on www.spider-farmer.com See the Complete test r...
The Ask Dr Coco Show: PPF and PPFD, the Frosted Cake Analogy
Переглядів 3,3 тис.Рік тому
EXTENDED CLIP from the Ask Dr Coco Show! The lesson this week was on Grow Light Physics. I discuss dimming and hanging height and for the first time I illustrate my “Frosted Cake Analogy” to describe the relationship between PPF and PPFD. The Ask Dr Coco Show is a weekly webinar that I run for Patreon subscribers. Each week, I do a quick tour of my garden, invite a guest to do a garden tour, an...
The Ask Dr Coco Show - You're Invited
Переглядів 2,7 тис.Рік тому
I am doing a Weekly Webinar on Zoom! Mondays 8pm ET - 5pm Pacific The “Ask Dr Coco Show”! Each week, I do a quick tour of my garden, invite a guest to do a garden tour, and I answer grower questions that are submitted in advance or during the show. You can ask your own questions, upvote questions that others submit or just watch and listen. The Ask Dr Coco Show is not broadcast on UA-cam. You m...
NEW 2023 Mars Hydro FC6500 PAR Tests and Review
Переглядів 12 тис.Рік тому
GIVEAWAY During the Live Premiere! Sunday Feb 19th, 3pm Eastern - Noon Pacific This is an Update! I first tested the Mars Hydro FC-6500 in January 2021. There have been several updates since then, so I got the latest model and ran it through several Tests in 4x4 and 5x5 areas for growers with and without supplemental carbon dioxide. Use Discount Code CCFC on www.mars-hydro.com/ Find the complet...
Medic Grow Mini Sun-2 320w PAR & ePAR Tests and Review
Переглядів 10 тис.Рік тому
Medic Grow is finally making lights for smaller grows! The New Mini Sun-2 is available as a 150-watt version which should be ideal for a 2’ x 2’ grow space, a 240-watt version, and the 320-watt version that I tested in a 3’ x 3’ space. Medic Grow Lights are among the best deals in horticultural lighting. They offer unmatched value with high efficiency fixtures at incredibly low prices. Plus, we...
The Science of Horticultural LEDs
Переглядів 23 тис.Рік тому
LEDs are the Present and Future of Horticultural Lighting! However, there is a lot of misunderstanding and misinformation about horticultural LEDS. I see growers often duped by dubious marketing and I believe that the best solution is education! In this video, I explore the science of horticultural LEDs. I’ll explain the Physics of Light Emitting Diodes and the latest horticultural science abou...
Medic Grow Smart 8 PAR & ePAR Tests and Review
Переглядів 12 тис.2 роки тому
The Medic Grow Smart 8 is a great light at a phenomenal price. It is a large foldable grow light with 8 LED bars and 760 watts of power. It is designed for home growers, with an onboard display, timer, dimmer, and bloom switch! Medic Grow Lights are among the best deals in horticultural lighting! They are offering quality fixtures at prices that nobody else can match. Plus we have a 10% discoun...
Mars Hydro FC-E3000 PAR & ePAR Tests and Review
Переглядів 31 тис.2 роки тому
The Mars Hydro FC-E3000 is an adjustable LED bar grow light designed for 3’ x 3’ coverage. Mars Hydro makes two lines of LED bar fixtures, the FC and the FC-E. The FC-E fixtures have an excellent price - but do they perform as well? In this video, I compare the performance of the FC-E3000 to my previous test with the FC-3000. I put the FC-E3000 through 4 PAR and ePAR tests at different heights ...
Atreum Hydra 3200 PAR & ePAR Tests and Review
Переглядів 8 тис.2 роки тому
GIVEAWAY During the LIVE PREMIERE! MONDAY 4/18, 8pm Eastern - 5pm Pacific! The Atreum Hydra 3200 is an innovative LED bar Grow Light designed for 4’ x 2’ coverage. It has more than enough power to fill in a 4’ x 2’ space. There are 4 bars that run the long way and the diodes are algorithmically distributed towards the ends of the bars. The design leads to exceptional uniformity with PAR and ePA...
what ec should everything be for when your done mixing your nutes and does it matter based on the level your at for example veg seed etc
is there anywhere you have videos or pictures of your grows to see how they look i was curious in using your nutrient methods but i wanted to see how your plants come out (not trying to take shots love your channel)
I'm going to go out on a limb and just assume your a renter LOL but i like your video.
Worth replacing an SP3000?
Thanks for teaching me nun
You hae a gang squad running the chat, ive seen tehm ban 5 people for asking growing questions, ive been banned for introducing myself,m handicapped and really could use some equipment but when i did beong i saw the same people you elected to run the chat usually one and didnt even need the lights so their best friends in the chat would get the light, I got fully banned by my router when i was teling a joke but was just starting and involveda "16 yAR OLD GIR" BUT IT WAS A SCAM AND HAD A LOT OF ANGELES TO IT. comment on this post dr coco and ill give you my emaik and phone number then and hopefully we can sort this out cause you got an amazing site and plenty of evel headed guy to run it and patrol it BUT YOU PICKED SOME BAD APPLES AND IM SURE I CAN HEKP U GROW IT , yOU PROBABY HAVE SO LITTLE MEMBERS FOR A CERTAIN REAASON FOR SUCH A GREAT SITE AND ILL TELL YOU WHY IF YOU GET ME BACK ON AND dont allow a gangof 6 people with no real friends RUN THE CHATROOOM AND JUST BAN EVERYONE ASKING LEGIT QUESTIONS .yOUDID SOME THINGSTO SCREW UP THESITE, ITS NOT WELCOMING ECT. comment, ILL POSTMY EMAIL AND WAIT FOR A RESPONSE AND GIVE YOU MY NUMBER TO E\XPLAIN WHATS GOING ON AND HOPEFULLY YLLJ OU CAN GET E ME BAC ON SO WE ALL CAN LEARN FROM EACH OTHER AND GROW TOGETHER...SIGH
Please comment on this dr mj oco and i will give you my email beause i need to learn things, plus your site should be biggger, and also i got banned like 5 times , ive seen 5 or 6 people get banned from the chat for aking about pot, i got banned for litereally introfuing myself. i decided to try omething else and tell a joke from my perception as it happened. IT WAS A SCAM but i was explainging what happened and you would get the wild parts and scary parts and funny parts ect as the wtory went on, it started on a dating site where a girl messaged me for a dic pic i said no she wanted one again and again i laughed at this joker and they said they weree a 16 year old girl.. BAM KAREN IN THE CHAT ROOM, YOU SHOULD BE DISGUSTED WITH YOURSELD TALKING ABOUT CHILDREN and banned my whole router. Plenty of people can manage your chat but the people that literally have no friends it seems nad are in there all day and night for over a year and act like a gang and bully people and kick them and laugh, on your platfourm....its messed up. So lot of enthusiasts andbeginners are welcomed to your ite and ask some questions and are banned and ive watched them feed you hal truths and bs stories. Please COMMENT AND ILL GIVE YOU MY EMAIL THEN PHONE NUMBEER ause your site is wonderful but has some issues> I hope you actually appreciate every subscriber and grower, oh i was ridculed for not even having a badge of any kind but kept getting banned fr their amusement at one point, if i left on my own they sent a message saying i warned you, and banned me. I thought i was getting hazed till i sat back and watched others get banned for asking to many questions on growing which is what i thought thee chat should definetely be used for, not to talk about video gmes and what theyfed their dog and if you interupt them... banned. Plenty of people i met are nt like that but they dont run the chat and havent played you. COMMENT PLEASE SO WE CAN RESOLVE THIS, ILL GIVE YOU MY EMAIL THEN NUMBER SO I CAN GIVE YOU SOME ADVICE AND HOPEFULLY YOU CAN GIVE ME SOME.
DRmj coco, YOUR SITE IS WONDERFUL, UNFORTUNATELY I CANT GET ON IT. i NEED THE KNOWLEDGE ON THERE. Unfortuneately almost everyone that joins goes to the chatroom to get the 5 or 6 questions they need to know answered by experienced growers. I got banned for introducing myself, saying some things about my life and living situation so they knew what spae i would have, and asked to speak to an experienced grower. Suffenly i was off the site so i made 4 or 5 more acounts before i finallly saw a yellow sqaure saying ive been banned! I changed to a different IP adresss and went in and saw someone get banned for asking questions about growing, and its just the same like 5 or 6 people in there all the time and 2 are just straight up bullies, i was bullied for like an hour before i figured it wasnt hazing cause im new them just being jerks so i left and was banned again. I switched things up and instead of talking about annbis i was going to tell some stories that were wild that happened in my life , one which was a known scam, but i was telling it as it happened and i percieved it at the time, i said i was on a dating site and i got a message from a girl she asked me to send her a dick pic, i told her no! she is like ome on@ i asked how old she was and she said 16, and then some karen interupted saying YOU DONT TALK ABOUT HILDREN ON HERE! A guy said WOW, you can say that and i almost got banned for just asking a question about pot. My whole router was banned. There were people i met i believe older in years and were calm and not like a gang of huligans that spend their lifes in the chat room abusing their power. I would like to talk to you. I GAVE EVERYONE IN THE CHAT MY REAL PHONE NUMBER , i said" i have no idea why you guys are treating me like this and typing is taking to long just one of you call me and lets talk about this" they said" are you stupidd?" and nobody called me. You got an amazing site but relied on the wrong people there and now i cant get on to ask questions or just look at things for optimal growing since my whole router got bloked while i started telling a JOKE but she slammed me before i ould finish it. Ask yourself what kind of people only have friends in a hatroom and thats literally their LIFE, they spent like over a year in there talking to the same like 5 people and 2 were just nastybulies that you let run the chat. A lot of people got unjustly banned. Id like to talk to you, maybe you could help me out with what i need to know, and maybe get me aloud back on the site, the site should be way bigger then it is and i may be able to help you out with that.IM GOING TO POST A SECOND MESSAGE READ IT.
Are there the same for 1000 watts with spectrum control?
How long can that one gal of mixture solution be stored? Going to use a 5 gallon fabric pot.
My plants was doing better under a 32 watt lamp light. This piece of shit has my plants all droopy and sad. Its garbage dont buy it
Can I grow tomatoes with this grow light
Would you give that whole gallon to one plant or many plants? Just use as needed?
Thanks you 100000000 Times. Perfect germination. Happy Growing 💚
Can I put my germinated seed in it directly? Or do I have to give it nutrients off rip? Or can I wait a week or 2 then give it nutrients?
Hello, will there be a test of the new Mars Hydro FC-E 1500 lamp on the channel?
I know that this is a 2 year old video, but I am in Thailand, and if it isn't made here or China, it takes it a while to get here. The Lumatek Zeus 1000w xtreme ppfd co2 just arrived here. Been watching your videos on its European brother. Hell of a light. Here's where I need some help. Given the choice between the Lumatek Zeus, and the Marshydro FC-8000 evo, which one would you recommend? As there, the Lumatek is about $500.00 more expensive.
I wouldn’t rinse with tap water. Our water here is 700+ppm I use ro
What size of the box in which you have made a measurement
If you buy coco not in bricks but already in 50l bag would you still rinse and would you also still need to buffer with calmag?
I just got this light, I have had a lot of LED grow lights and this is the brightess light I ever had, I made a mistake and looked at when I turned it up and it gave me headache the first time that ever happened with a grow light
Hell I love my g8600 already
I’d love to see an ac infinity evo8 . I’m very curious about the new evo diodes
Yeah but how hot do they run. This is something no one ever talks about. The light can be great but if it runs too dang hott than i can't mess with it. Hot lights only work on when they are all the way at the top of the tent so the inline fan can take that heat out
Did this and got a nice bag of mold 8 hours is nuts
Nice video with a lot of information but I'm still a little lost with all their models. Could you tell me which one to choose to get the best result in 39"x39". FC-3000/ FC-E3000/ FC EVO 3000? And why are the prices so different between these 3 models? Thank you for your clarification
Very informative video thanks!!
Is there a fold 800 comparison
I went off this video thinking it was the best value possible and now have wasted 500$ and have a completely garbage light that doesn’t grow anything even tho it’s bright as shit, I know it’s not your fault but for some reason ppfd does not actually guarantee good growth.
This light is a complete scam. I know this makes no sense but I read up to 1200ppfd but then tried to grow under it with about 300ppfd on the lowest setting for 2 months and it does not grow plants. I switched everything searching for the culprit knowing I’ve grown for 15 years and everything is correct. Finally swapped the light and they grew double as much in 10 days as that did for 2 months. Then they tell you it must be your fault and no refunds. Their customer service is atrocious. Do not fall for this scam. Idk how they do it with a high ppfd reading but it does not grow plants. I got the ez8 but I bet all of em are like this
I hate PH fr.
👍
Эта лампа феноменальна, так как многие используют свет 500ppfd. И за копейки можно или 2*2 осветить или 3*3 для не требовательных. А если все плоды будут на площади 2*2 а в свободном месте листья и вентилятор, то это самый дешовый свет для 3*3 гроубокса.
How do you think 2 of these in a 1m x 1m or 3.3ft x 3.3ft tent?
Great review, as always. I love how thorough you are! I, as well as others would love to see you review one of the newer AC Infinity EVO lamps. Im running two tents.. 2x4 with HLG350R and just started a 2x2.5 with AC Infinity EVO4 lamp. Its a burner in that little 2x2.5 Gorilla Shorty tent! Lamp seems to have major balls, and I think you could do an awesome episode running that new bar lamp in both its intended 3x3 configuration, as well as PAR testing in a 2x2 environment. Youve mentioned the "big lamp in small tent" prior, lets see a review! NO SUBSITUTE FOR CUBIC INCHES, the old saying goes.. Big lamp + small tent = BIG fun for all! In all seriousness, It really blows my mind that theres no legitimate reviews for the ACI EVO lamps. Just paid sponsor videos with no REAL info. Its a shame... In the end for my 2x2 Octo-Burner grow, it was between the Mars Hydro FC3000 and AC Infinity EVO4. It was close, but ACI won out mostly by virtue of instant compatibility with my ACI Controller 69 - Despite ACI being just a bit pricier than it's Mars Hydro counterpart. Your reviews are very informative and on point and helped very much with my purchase decision. My current grow can be seen on overgrow - James’ lil Octo-Burner. One 2x2 Tent. One Octopot. One BIG-ASS light to rule it all!
Im not too good at all this par stuff, can you recommend hanging height/power for seedlings/veg and flower?
Awesome thank you for making things easy!
Still gotta do the xs2500 pro 😊
melhor video do youtube
You just got a new subscriber
Super informative. Thank you for doing this video.
Hey doc , quick question what would you recommend for finishing autos between dry kool and Liquid Ripen?
Cation = cat ion 😺⚛️
Very good!
What are your thoughts on coco pebbles mix, say 60% coco 40% clay pebble mix? Always grew 70/30 coco perlite. Will be trying the coco hydoton mix this time. Tia
Sp range is best on market all 3 lights work great
Try in 3x3
Dont telling which LED brand makes this just sus. Also those clear bot comments.
Have you ever linked 2 of these lights together with the sf controller?
Hola Doctor! Eres el mejor ❤