Is UV missing from your grow room?
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- Опубликовано: 18 окт 2016
- Ultra violet light lies just outside of the photosynthetically active radiation range but it can have a marked effect on plants, especially morphology. Here we introduce UV and its components (UVA, UVB, and UVC / UV-A, UV-B, UV-C) and how it can stimulate resin production / essential oils in species adapted to elevated UV conditions (i.e. plants native to the subtropics at higher altitudes). We also discuss related safety issues when working with artificial UV radiation sources.
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best growing chanel on RUclips .
Thanks!
your very welcome I watch every episode 4 time so I don't miss anything thanks helped so much . one question have you ever use a soul test kit to fined the n-p-k what are your thoughts. I did the test and the pH was right and the on top of that one test for the p in n-p-k blow up on me .
Michael Cardenas Better late than never. I take soil EC tests but seldom analyze for more than that and pH.
@@michaelcardenas1287 check out migro channel for light information very useful
Definitely ahead of the curve when you made this, really great content you produced. Thanks man.
We love you Everest, thanks for the videos and happy planting.
3:20 dives in wonderfully to whiff the bouquet..........love it!
+Jonathan schadenfreude Thanks for noticing ;)
Could you tell me more about the powerveg lamps? I was considering using the fs + uv along with their flowering bulbs in a 16 bulb quantum fixture. I was wondering if you think a fixture this size along with proper reflective material would be sufficient to light a 5x5 area all the way thru flowering
Yass!!! i thought u might have forgot my request for this! Thx a million! Well developed information as always.
I've got your back bl00mz :)
Hands down best videos on hydroponics.
Great information breakdown for the tactical grower.
Props.
Thanks dude. Second room is not far away so, as they say, stay tuned amigo! :)
Thanks for all of the knowledge and videos Everest. Notifications are on. Respect
Thanks Ivan - much appreciated :)
great video as always!! Everest, can you do a video on IR and the Emerson effect? I would love to know details on putting plants to sleep faster!
Excellent video that explains the uv spectrum. Thank you.
You're welcome my friend. Thanks for watching! Hope you're subbed. :)
Wow, its like being slapped in the face by Mr.Info... Haha.
Im wondering what is a good all in one light (veg-bloom) that is powerful enough to for good penetration but still has a good spectrum sufficient UV? I'm planning on using a 1000w gavita DE hps right now.
...simple question...
Re: the Hortilux T5 PowerVeg...How far do you recommend the distance be from the top of my Cannabis plants?
Best Growing Channel ever. I love how fast you talk! Thanks for the videos!! I got a question though. Is there a reasonable way to combine low wattage HPS (400w) with a not too expensive UV source (e.g. HO Fluorescent tubes)? Or will there be to much shadowing because the HPS needs to be further away from the plants than the HPS. Thanks in advance. Keep growing!
+MrYawAsante Thanks for your wonderful words MrY! I like the sound of your 400 HPS + T5 HO UV (e.g. FS+UV PowerVeg by Eye Hortilux) and birth could be located around 12" or so above the plant canopy.
Everest Fernandez Thanks for the info. much appreciated
Can i run a quantam board with a flower boosting light and a uvb flurescent or its that too much light if so should i distance light further?? Also how close should the uv be
I have a t5 4ft 4 bulb fixture wuth 2 uva n uvb bulbs and a roi e680 led ..howling do you run uv and how far from canopy?
Thank U a very good job of making your point .
UVC can be used to sterilize areas but you don't want to be in the room when it's on so you need like a timer
Despite having been redefined as bottoming at 400nm, 380nm is the correct line where UV A begins. Between 420 and 380 nm is properly referred to as "violet."
Thanks for sharing your insights and opinion. As you know, the electromagnetic spectrum is divided into several ranges or bands, including ultraviolet (UV) light and visible light. The boundaries between these ranges are not always strictly defined and can vary slightly. The UVA range is often defined as being from 315-400 nm, but some sources may define it as starting at 320 nm.
When describing wavelength bands of EMR as colors we are, of course, basing this description on our human perception. The visible light spectrum is generally defined as ranging from 400 nm (violet light) to 700 nm (red light). However, the exact boundaries can vary slightly depending on the sensitivity of the human eye. Some people are able to perceive light slightly below 400 nm or above 700 nm.
The portion of the visible light spectrum perceived as "violet" is generally considered to start around 400 nm, but again, this can vary slightly. You may be among people who are able to perceive light slightly below 400 nm as violet, while others may not share this ability.
In order to overcome the subjective differences between one human's perception and another, it's probably best to stick to the general ranges for UVA and violet light that are well-established and defined in nanometers. To define UVA as ending at 380 nm would be outside the most commonly accepted ranges.
how long you been doing this Everest? Im impressed you have time for all the science, gardening and then shoot and edit these videos with graphics etc. Are you a one man team - one speed 'GO!' all day every day? 😃 lol, good stuff dude. thanks for your passion.
matthew allred heheh thanks Matthew. Definitely love what I do. Hydroponics is my passion and job. I love growing organically (outdoors mostly) and I work in hydroponic nutrient research and product development. But that's me. These vids are more about leaving friendly, concise, accessible and helpful digital material for today's and tomorrow's beginner hydroponicists to follow, discuss and improve. Peace!
Any more info on UV-C?
I Know cleanlight uses UVC bulbs to kill mold and fungus / spores.
Is this light harmful to the plants?
Is it because of the short exposure to the bulb that it doesnt cause harm to the plants?
Thanks for all the videos!
Such a good video, thank you!
Wow u are know everything very interesting video,how many hours we should use UV for grow room in day
excellent video as always
another great video. thanks
maurice mckinley thanks Maurice
Where are you finding that Gavita LEP for that price$?
isit true, that UVA and UVB prohibit the size of the flower or bud ?
Are led grow lights safe to have in a grow tent inside your grow room?
@Everest Fernandez when you spoke on sun screen for plants I wish you spoke of another type of natural plant sunscreen... trichomes. I am particularly interested in trichome production as are all others that grow the beautiful ...meadow sage. I asure you we are more than a few interested on hard data regarding ultra violet supplementation and its affects on trichome production.
just thought it would make for a great video. love your work man.
Thanks buddy - I'll definitely look into it. Fascinating topic!
Hello From Argentina? I have Ebay china Panel Leds 2x2000w each,no name.After your video what I do? Is very powerfull and each Panel keep 4 UV.Do you know aboute those Leds?Thanks
where does one find, UVB UVA supplemental lighting for 1000w repeating grow rooms? i've read somewhere about terrarium lighting may work..... Although would there be a 100w double light to stradle the sides of a 1000w fixture thats similar to those T5's?
The SolaCure Flower Power T5s are the easiest way to get what you need.
I've seen 1 meter LED strip lighting used for veg. specifically two warm whites (2700K) and one 395nm UV-A, I"m told this draws about 21W per fixture and produces plenty of spectrum for most plants.
anyone else ever seen this?
Oh man, you are so clever, I couldn`t even get my head around all this scientific staff you were talking about. Do you mean I should avoid LED lights which produce UV light? What is ideal PAR range for LED light then?
You sir, are a bloody genius sir.
Which is better ?
Great quality content
What about using UVC to "Clean" your room between grows?
Where's that hand model
You can use ultraviolet to produce crops that seem like they were growing at a high altitude at a low altitude
Even the high end led's put out just a few watts of uv. Not enough to effect growth. A lighting scientist said you would achieve just as much by pointing your remote at your plants. Its take a minimum of 40 watts per every light footprint to make a difference. My full spec super hps makes well over 100 true watts of uv. Results speak for themselves. Cheers
so if one has invested in leds that don't claim to have UV in them what wimoukd be a good supplement light that isn't fluorescente? thank you for all your vids!
a UV bar! check out the one from fluence
hi everest I enjoy your videos but I have a friend that is deaf and I was wondering if you can tag your videos to have captions otherwise we had to set each one individually which is okay but it does suck when we want to watch a whole Playlist. thank you have a good day
Thanks Leanna, I am working on English captions for all videos. Thanks for the encouragement to get this job done. Sending my best wishes to you both. Peace and happy growing, Everest.
How about supplementing UV with bulbs designed for reptiles? They come in UVB. Will this help increase oils in the plant cultivated?
Yes, but make sure you have adequate levels of UV-A. I'd shoot for five or six times the amount of UV-A to UV-B, and plenty of PAR otherwise you'll just see negative effects of UV-B. Remember, if you need to get the T5 lamps fairly close to your plants so hanging them up 3 ft above the canopy alongside your HIDs won't cut it.
thank you very much! but i still dont know or how long and how near i should fire up a metallstripe with 4 cree uv leds ... can anybody help with their results of WHEN, HOW LONG and HOW NEAR should a Stripe with 4 CREE uv leds be?
For when and how long, I've heard most people only supplement them for 3-6 hours of UV, usually around periods that would fall under natural sunlight (most intense UV comes at like 10am-4pm, when the sun is going directly overhead) but I have no clue on distance, probably depends on how intense your fixtures are and might have to do some testing on distances to figure out what works best
I have read that UV will stunt growth but IR causes too much elongation.
Would running both together eliminate this problem?
+wileym thanks for your question. Sounds line I need to do a video on IR (it's in the works). Look to sunlight and we see UV-A, UV-B and IR. Plants adapt to the specific conditions we call their "native habitat" - the environment they have spent millions of years adapting to / colonizing. Plants need IR to raise internal temps in order to metabolize / proper enzymatic function. It's a case of balance. I'll explain / show more once my new LEDs arrive.
cool info thankyou
Thanks Jeff.
Nice!
Do a video on IR as well
+Yangee Sangee Thanks. Great idea.
A quartz glass may allow the Uv-B to pass
Killin it as always Everest brother...great info in this one!! I must say I'm loving the Rare Dankness sticker on the wall in a few of those clips...I knew you had it in ya bud 👍👊💯👌😎
+Ganja Zilla Heheheh thanks amigo. Lots of great things coming this year :) Lev up for 2017!
this guy way too smart to be a grower should of been a scientist
Sokay to just be both.
Cool subject did you say their is not a uv led that is not good enough for the job as I have uv and inferred in my set up they are 5 watt led s could you go in to more detail on this as it's a big kick in the nuts for me as I wanted to build a led grow light that had them in
I wouldn't want to stick my head out and say LED is not up to the job. The current state of technology, although expensive, is certainly up to the task of growing plants and LED technology continues to advance at an awesome pace. Watch this space, as they say. :)
Everest Fernandez I love them I think their great and so versatile you can stick them any wear in the room even as a substitute light and they last if you get the good brands and theirs so many types of led light spectrum you can get cost effective too
Thanks Everest, love how you present the facts. I WOULD LOVE to see a lab study conducted to see how environmental manipulations affect the "essential oil production", do you know of any such publications?
I’m going to be delving deeper into this topic next year - lots of interesting research going on right now.
I've always wondered what your average pepper costs you to produce with all your equipment costs figured in.
It's not something I've ever calculated. I imagine it's VERY expensive. But I don't do it for cheap peppers. I do it for the love of growing and the chance to grow anything I like. :)
I understand completely, I love to grow stuff from seeds I collect. I know they will most likely be inferior plants in comparison to the parent but I enjoy it anyway
How many Watt do I need for UV-A and UV-B per 4"x4"? My lamps are in a cooltube. =/
I'll do a follow-up vid once I get my UV meter for Christmas and go into the practicalities.
Everest Fernandez I have read on the Internet that should be 10% of your light. For 600w Cool tube HPS a 60w UV A/B lamp should work. But at first it's nice to know. thx for your videos :) this helps me a lot!
UVC also blocked by air, actually oxygen is converted to ozone
Hi i want use uv b for growing Rosemary in open field and larger area please can you suggest me
LuxxLight International offer a 24W UVA-UVB fluorescent light that can provide supplemental UV alongside your regular full spectrum top lighting.
What's up brother? long time.
I was planning on using UVA UVB reptile light for 1 to 2 hours a day in conjunction with my thousand watt HPS. I'm looking to increasing my terepines flavonoids and tricomes. I've read a lot on how UVA UVB is very beneficial but deadly. Do you recommend using it in conjunction with HBS or just turn them on for an hour or two and then turn on my HPS shutting the down the UVB?
You're still the Nikola Tesla of Hydroponics
I would recommend using a UV source with the same radiant intensity punch as the HPS / DE-HPS running alongside. You really can’t beat a 630W DE-CMH for this purpose.
@@Just4Growers Genius!!! Ty!!!
lol, I can't walk by rosemary without doing the hole face thrust and sniff.
+18deadmonkeys Gotta get in amongst it!
+Everest Fernandez - Always great info, but ... Might have been better to emphasize PAR vs. non-PAR (you want to discuss Red in a different Video?).
So my (Vancouver BC) 2¢ is:
Without another discussion about which is 'best' just buy LED or DE HPS or Plasma with a high PAR rating (and don't worry about paying huge $ for Mfgs to _add_ UV (or Red) with a cost ineffective gimmick) - get supplemental lighting, like you said.
Different Strains respond better so you will likely need to experiment (a year) and "Breed it into your Seeds" is better than shocking some weak Clone that is non-responsive.
Be super careful since cheap 'A Lights' may be zapping you with some 'B' - Human health hazard - so switch off before you enter (you can't see those Lights so you don't need them on when you are near them).
Read Technical Studies (and 'Stoner Forums') to get some Research under your Belt (and suggestions of where to go next). You'll need Intensity / Dosage / Distance and Duration advice. Also in which week to start.
'Long Red' Experiments will likely gain you more (but not 'Defensive Terpines', yield) than using 'Short Blue' Experiments - thus my comment about discussing *all* useful "Outside of PAR" Lighting (UV and IR).
Info about Red is easily available: www.thcfarmer.com/community/threads/phytochrome-manipulation.29747/ . Running your normal (regularly priced, credible Mfg) PAR Lights (Like Gavita) MORE than 14 Hours (using long red) to flower your 12/12 Plants will gain you far more yield than the UV Lighting will gain you sweet Terpines (but you can do both).
So: In-PAR for normal growth - UV for a fair chance at obtaining sweet Terpines (and Plant burning / damage) - Red to extend your normal PAR Lighting 'ON Time' and likely score 50% bigger Flowers (without messing up your Plants as easily as UV will).
If you're an Expert do it all, if you're a beginner do it carefully or just stick with a standard DE HPS. It's like you need another thing to worry about IF it's not growing like a jungle already. You know how much failure costs you so a second small room will be better than risking it all.
You da man Everest - we all appreciate all you say (whether we (only I?) agree on all points or not).
YT,
Rob
PS: So bring on the 'Red Video' when you're REDy :) .
Great video amigo, plant bro!
+cicco Thanks Cicco.
I have a florescent black light, could i use it to grow?
no
hi, I was wondering what light comes from the cheap blue red lights,
These LEDs use blue and red 3W and 5W mono-diodes. Photosynthetic response in higher plants have similar peaks of sensitivity for blue and red light, but plants have evolved under full spectrum sunlight and need all of the colors, all of the time. Some varieties of lettuce and leafy greens can grow fairly well under mixed monos, but I definitely recommend full spectrum for optimal plant health and working conditions.
Went from apogee to this and still had it at 1.5x speed. Felt like my abuela was yelling at me xD
great video
Thanks XstayUpX
So. Should get a uva Or Uvb light?
UVA
Mercury Vapor lamp FTW!
Спасибо Вам
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lol i was just about to comment on that sticker as well lol
3:35 that rare dankess sticker though.
Is it still organic if we grow plants under uv lights? Thankyou :)
Hi Unicorn and thanks for your question. The term "organic" when describing produce refers to the exclusive use of carbon-based inputs and restricted use of certain pesticides. No specification is made (in any organic standard I know of) on the light source.
Everest Fernandez Thankyou so much!!
You're welcome!
1:27 lol looks like the guy from ancient aliens
nice rare dankness sticker
lelelel
That's bad news for me wanting to do rosemary indoors.
My man. Please come back 😭
This year is the year. Thanks for your patience amigo.
Does a plant produce more protection(resin) during the day or at night anticipating the day?
Happy G. I would say they produce more at night when there at "rest" on my plants I can see the difference from day to day and a camera on them 24/7 and you can see the plants glitter a lot more .
Ok, when is the ultimate time to harvest? First thing in the morning or wait ill about 10.00? I can't find a definitive answer on the internet. I like for them to burn the dew off, then cut. What is your take on this?
Happy G. what I do is I harvest first thing in the morning . I also have my plants in 48 hours of dark before right before I harvest . I fined that the dark for that long makes the plant stress and produce more oils/resin to protect the it's seeds and insure that it lives on .that's jus t my take on it some might disagree I would like to hear others input to .
What about icing the roots down while they are in darkness for 48 hrs?
That's new to me but I have 4 plants that are a week away from harvest I will try and see what happens . I would think the ice would shock the roots and then for the 2 days in dark the plants might eat all the sugars in the leafs and that's what you want because I have no nutrients in the soil . All I have in there is black strap molasses and I put a half tsp per gallon on the last flush . So I could see how it would work .
can I use a blacklight?
yes.just make sure its true black light not black light blue bulbs
my black-lights when on look purplish
www.1000bulbs.com/product/2836/FC15-SBLB.html you mean like this?read comments and u can make your own conclusion
many "black lights are not true UV lights. just painted CFLs. aome growers are using small reptile fight to ad UV to their spectrum. you do not need much UV to improve the quality and taste of you "produce"
I assumed I didn’t see any change when I flipped the UV on switch on my Bloom Boss True Sun LED because UV is not visible... maybe the switch doesn’t do anything?!?!
Get some glasses & see if that LED lights up when you flip the switch. Definitely no expert here, but I think that's how they work 🤷♂️
they never tell you how long to expose the plants to these lights
2 hours in the middle of light on
Odd as with my reptiles they require a uv-b lamp.
Aidan Craig they need both UVA and UVB (mostly uva)
pretty sure i saw a rare dankness sticker.
check out cleanlight !!
Look at the uva/uvb bulbs sold by solacure.com....they work very well for cannabis
I think Id be growing something other than rosemary under that Gavita if I were him.
+Dubmurphy More of a spearmint guy?
Incorrect. UVA rays are the most dangerous when it comes to the skin. Great video please slow down the pace of as it is hard to follow.
It depends what you call “dangerous” - skin aging is primarily caused by UV-A while skin cancer is primarily caused by UV-B. While UV-A also plays a role in skin cancer formation, it’s actually the high energy UV-B rays that cause most damage in this regard.
Not true Linda try again
Listen Linda, UV-B and UV-C are the harmful wavelengths.
Dangerous misinformation like that can blind a fellow.
🐔💩
not a LED fan yet eh Everest?
Don't see any reason for there to be a fan of LED's with their current overblown specs and prices. They're a high priced toy.
juicyjumbler LEDS are a great way to add supplemental lighting .I use them on every crop and you can make your own fixtures .
Keyword there my JuiceJumbling friend is "yet". No, admittedly I haven't bought into LEDs yet but all that could be about to change as I look to dive into some new LED fixtures in 2017. Watch this space, as they say. :)
Michael Cardenas T5's are a great way to add supplemental lighting... Only they cost a fraction of what LED's do.
Everest, have you heard of Fluence? They make the Spydr X Plus Led light fixture. It grows incredible plants quickly.
I'm a recreational grower. Really I am.
rare dankness sticker on the wall :)
+Toby Maples I must have a word with my cleaner.
Set playback speed to 0.75, much better 😂
He used to sell "micro machines" back in the late 80's 90's and now he makes garden RUclips video :/
Wat
Talks to fast to be educational sadly.
UV sanitates grow place. Thats the most important. About thc im not sure...
SLOW DOWN...YOU'RE TALKING TO FAST
Watch lex blazer. Same info, but slower. I like the speed.
Yeah i like watching him also.
viewer 51,468
Aofxd
WHAT ARE YOU RUSHING FOR??? SLOW TF DOOOWN MANN!!!!!!
I don't know if it's my generation but I cannot follow this tv car salesman style of video.