could i use the mixed blue red 225 led light to grow from seed to flower?
or should i use blue for veg, then all red for flower?
these lights have more leds than the UFO, what is better?
i want it to supplement the CFLs i already have.
Printable View
could i use the mixed blue red 225 led light to grow from seed to flower?
or should i use blue for veg, then all red for flower?
these lights have more leds than the UFO, what is better?
i want it to supplement the CFLs i already have.
You should definitely use a higher ratio of blue (more blue than red) for vegetative and a higher ratio red (more red than blue) for flowering. You should also have at least some red in vegetative and at least some blue in flowering...both wavelengths are needed.
Check my thread....lots of info
http://boards.cannabis.com/indoor-li...row-light.html
I beg you, do not purchase those square panels. They are not grow lights as advertised, in fact the LEDs at nearly 50nm from what can be used to grow. Also, you won't get as much light from them as the UFO or the Procyon 100. The Procyon is about the best on the market and it still isn't that great. Wait a while, LED is not yet useful enough for growing cannabis unless you dump loads of money into it just to get it started. If you want to grow with LEDs learn to wire your own board and use custom bought LEDs to ensure you are using to correct wavelength.
PaperChaser:
I have a good tip for you. DO NOT give tips if you DO NOT know what you are writing about.
You have no evidence to back your claim up. The spectrum the LED PANELS output is in fact within the proper ranges to grow with.
Secondly, light output is going to be low on all LED lights.
High Tech Garden Supply - Check out the link.
Hmm 460-470nm blue, wait a minute.... Peak absorption occurs at 425-445nm around 99% usable light where as 460-470 is around 85% usable light. And as you said low amount of lumens which means you need to maximize the potential of absorption from your LEDs so why settle for 85% when you can use nearly ALL the light an LED emits by getting the proper wavelength. Please don't tell me I don't know what I am talking about, I have several charts of the absorption spectrum of cannabis in front of me and I visited your link. I am not trying to be an asshole but don't tell me I gave mis-information when I didn't.
Want a perfect LED grow light? 65% blue and 35% red for veg, reverse it for bloom but start bloom with 100% red for a few weeks.
425-445 or 450nm for blue and 640-660nm for red.
Using clones? 90% blue and 10% red when rooting. Any questions? Ask and I will try to answer them.
Now that is the cheap version. To get the best absorption you have to match the absorption spectrum perfectly, the sun doesn't even do that but it provides so much light it doesn't need to. Your LED grow light won't so you need to match it within 10% I would say to maximize the investment to payoff. This means you would need some green, purple, yellow, orange. Hell you would need every wavelength LED to cover from nearly 400-670nm and that would require a shit load of moolah, which most people don't want to spend so I will spare you all the exact details b/c I would get carried away.
i used to sell those LED panels... until i tested them and found out they suck. the blue ones work for vegging ok but the red ones dont really work so hot. i surrounded one plant with about 15 panels (roughly 240 watts of led) . very unsatisfactory results but it looked really cool with the lights on.
that website says copyright 2006
is it even safe to order from there
Ordering growing equipment in the United States is not illegal. To be frank, so many people order equipment/nutrients to grow something other than cannabis that the government simply can't put forth the effort to track all exisiting orders and investigate them. I wouldn't worry about ordering lights/soil/nutes/hydro stuff, what I would worry about is the seeds (if you want some crunk genetics). I ordered some from cannabis-seeds.co.uk and they are wonderfully discreet. I sent in cash (using a security tinted envelope) and 2 weeks later got 10 Opium beans in a simple manilla envelope with bubble wrap on the inside.
lots of good stuff here :http://boards.cannabis.com/indoor-li...-light-10.html
hey phat the problems with 425nm is that it doesn't cover
the carentnoids at 480nm so the 470nm range is better!!
well actually 425nm and 475nm would be best for blue's
and a solid 660nm for bloom:thumbsup:
:rasta::rasta::rasta:
this is a forum on MMj did you get lost?? just curious:hippy:Quote:
Originally Posted by Paht_Hed
:rasta::rasta::rasta:
hey do you have links to those absorbtion spectrum graphs
that you refer to so much I would really like too see them
:rasta::rasta::rasta:
Hi! ddsrawks we have a big discussion going on LED'sQuote:
Originally Posted by ddsrawks
and those panels are not that good they just don't have enough wattage!! maybe for some thing very small like a lowryder
the best leds as of today's date are the enfis array's
http://www.enfis.com/docs/QUATTRO-46...0Sheet_0_1.pdf
http://www.enfis.com/docs/QUATTRO-63...0Sheet_0_1.pdf
under that is the procyon
Procyon-100 100W LED Grow Light - HomeGrownLights.com
under that this one
Full Spectrum LED Grow Light
under that is the stuff you linked too they are called
cheapo china:( they just don't have near enough watts
and i'm mad someone took my idea of putting the sun in a light bulb grrrrrrrrrrr!:D
Gadgets: Luxim's 250W Tic-Tac Sized Bulb Blows Away 400W LEDs
grrrrrrrrrrrrrrrr!
Video: Luxim's tiny but powerful plasma lightbulb - CNET News.com
grrrrrrr!
Luxim - About LIFI
:rasta::rasta::rasta:
Quote:
Originally Posted by DankCab
if you look here they have 3,5,10,15watt leds yes!!!!
LedEngin, Inc.
how much wattage those panels got all together 12watt??
one bulb from Engin will spank them back too school
I almost bought those china panels too so glad i did'nt
as they are only good for decorative purposes
:rasta::rasta::rasta:
I def agree veggii......just 1 LedEngin LED can replace hundreds and hundreds of 5mm LEDs. :thumbsup:
Hey veggii @ physicsnole;
Not all 5mm LED are created equal.
HomeGownLights 14w panels do work and have applications like my nursery; 2'X8' shelf transplanting macro plugs into 4"X4" blocks (144 0f them) growing to abt 6" to 10" plants. I had been using 2-4' tt-105 fluro @ 420watts and replaced it with 16-14watt panels @ 224watts. No loss in growth.
I admit that hi-power LEDs are what is making possible complete grows.....just don't count out those little 5mms, they have a place.
(china panels have a place in the garbage)
Hey All,
I was swept away by the LED craze and ended up buying those exact LEDs. I have 4 panels of the red/blue mix and i'm using them on my flowering side.
I am also using 2 T8 fluro fixtures...so in total i have 4 panels of LEDs and 4 T8 3000K bulbs.
i'm not satisfied with them (duh...)
Here are some pics of them at 4.5 weeks into flowering. The plants haven't grown an inch since i put them in there. But they are definitely flowering and they have a mess of trichomes and they smell AMAZING. I bet i barely harvest 1/4 oz from both plants.
I just got a 400w HPS that i'll be swapping the LEDs for this weekend. If you want to try them out i'd sell them to you for 3/4 the price of the HTG site. (i'm sorry if this violates a forum rule, if it does, then forget the whole thing.)
There's a fair amount of flowers for these little plants, but i don't imagine them getting a whole lot fuller. let me know what ya'll think
thanks
Skeet
So is it better to have a 1000 watt HPS or a Procyon 100
ok.....MAYBE i might know what I am talking about...those china panel 225 LEDs SUCK...tried them already. The Procyon is the only thing out on the market right now growing plants out to the end...check out either thread in my sig to see if they really work....
again...
DO NOT buy the cheap 225 panels...they WILL not flower a plant...and i used 2 of those panels, and they wouldnt even keep a 2ft male alive....
whiskeytango
100 watt Procyon is equivalent to the 400 HPS is what they advertise however I cannot verify the claim.Quote:
Originally Posted by andraco
man wot R u all talkin about ,,you can't grow weed with LEDS ....!!! lol
In terms of lumen output, you can compare the numbers as stated by the manufacturer, but remember that light penetration through the canopy is going to be a challenge with LEDs, and you will need to manage your grow accordingly.
good point stinks....penetration is an issue with these lights...i would avoid any real bushy strains with the LEDs unless you have supplemental lighting on the sides or what not
WT
Exactly right regarding the penetration issue. That is the whole ball of wax regarding LED usage for growing MJ.
That is why I don't think any of the current commercial lights are really the answer. Both Procyn and TI, pack a lot of wattage into a small area. You then need to keep the lights at least 1 to 2 foot above the plants in order to get a reasonable footprint. IMHO, 6 inch is the max for any currently available LED, running in the 2 to 3 watt range.
For the stated purpose of the TI, this is fine, since it the manufacturer says they are to be used to supplement sunlight in commercial greenhouses.
The Procyn, is a little more vague in their mission statement, but I get the impression, they want to mainly target the MJ market and a secondary market of hobby vegatable and flower growers.
For LEDs to stand any chance of having a decent MJ grow:
1. You need to have a very flat canopy, with a 2 to 3 inch maxium variation in contour.
2. The lights need to be evenly distributed over the entire canopy and kept at a 1 to 2 inch distance from the tallest point.
3. Ditch any optics. You take a 15% hit with lenses and thermal management gets to be a bitch.
3. Forget 5mms. Even the best ones like Tru-Optos can't hang with the big dogs as far as power efficiency. Plus there is no way to manage the heat. Their only use is to provide clone lighting or some side lighting, but even then you would be better off with the big boys.
4. Don't waste time and energy worrying about precise wavelength combos. A good starting point is a 2 or 3 to 1 ratio of red to blue. Nobody really knows what is going to be the ultimate light nm ratio at this time. Check back in a year or two for a better answer.
5. Currently, you could possibly (but not likely) equal or outperform HID on a watt to watt basis. Forget having 100 watts of LED replace 400 watts of HID power like all the manufacturers claim. That might be true for some kind of low light plant like pansies or herbs, but not for a light hungry plant like MJ.
6. The good news is probably sometime next year, LEDs will be the best solution for stealth micro-grows in the 4 to 6 sq.ft. range. Just got a few more bugs to work out. At this time, LED/CFL combo grows seem to be working out better then either LED or CFL on their own.
:postexcuseme:
hey redline, i agree w/ some of that but I have to tell you that there were vigorously growing bud sites at 2'+ from the array that has lenses and a piece of glass in between. and point #5 needs some discussion, required wattage levels are are and will be changing rapidly based on the increasing efficiency levels of the leds being created for mass production i.e. a 100w led array of 2 yrs from now will be much better just based on technology.
And just a bit of warning to the HID users: those lamps are made (mostly) by companies making there money creating street light HIDs. so what happens when that market is swallowed up by energy saving governments using LEDs.:(could be in for dark (purple) times ahead...:vader1:
late
db:smokin:
that's the story of my life... :wtf:Quote:
Originally Posted by SnSstealth
:lol5:Quote:
Originally Posted by NaughtyDreadz
Stealth,
I would say 2 years would be tops, hopefully even sometime next year. I think the next generation of LEDs will probably do the trick. I think it is very close at this time.
Regarding distance and lenses: There is a trade off. If you are doing vertical plants, you need all the penetration you can get Then you need the lenses to really get the light focused. . However you give up covering a wider area and a take a 15% energy loss. At this time I am leaning towards the horizontal grow and very close lights evenly distributed. But who knows. It is really still experimental. That is why it is good to be exchanging info and results.
You can improve the light penertration issue, to some degree.
I replaced 2- 400watt MH's in my mother room with 2- Procyon 100's. By putting them together on a light rail it improvered some, simply by changing the "angle of attack" of the light constantly. Gained even more by adding a down facing fan between them, now as lights move over the mom's, top leaf growth blows around and lower leafs see more light, just like nature. My mom's seem happy and are short (kept to aboout 3 ft) and fat (phat?).
I'm not really sure if 100w of LED equals 400w HPS; I think 100w of LED my be as good as 400w MH, at least in the Procyon.
The Smartlamps have abt 300watts and they only claim a 600w HPS equal. I feel this might be a more reasonable claim but we will see.
The more LED's are used the better they will become.....and like most electronics, the prices will drop. I remember my first H/P scientific calc cost almost $500- in abt 1970, what are they today?
Outstanding idea about the fans. Any edge we can get will help out.
I agree (looking back @ that post i seem to be attacking...i dont know why...lol). thanks for all youre input the community needs all the help it can get:thumbsup:Quote:
Originally Posted by redline
db:smokin:
No problemo, and no apology needed. We are not a bunch a cheerleaders, but a group of dudes trying to solve a technical problem
All new ideas should be aggressively attacked and questioned. If they can't be defended from criticism, then they ain't worth shit.
siss boom boom...
well said redline....lol
WT
:DThis is the new light that is going to be used in street lamps and potentially our gardens. 140 lumens per watt , full color spectrum (almost the same as sunlight) and turns almost all energy into light with little heat. Sounds to good to be true but the future is coming.
Luxim LIFI Plasma Light
YouTube - Plasma Light Bulb
Plasma Baby......:D