First and foremost…Hullo!!This is my first instrucle long time reader, first time actuallypostanythinger, i should be revising for exams, hence i have done this instrucle!, any comments and criticism is greatly appreciated.This instrucle will demonstrate how to grow small plants under LED lights.The idea for this came from an odd source, a friend of my step thers recently had to run away to a different country because he was caught purchasing large quantities of lights from electrical stores for growing some nonetoolegal plants indoors.I dont condone this in any way, by all accounts the man was an idiot. But it got me thinking about ways to grow plants under artificial lights,after a bit of thinking and a lot of googleing this project was born!A bit of theoryPlants look green, therefore they reflect green light, so it probably isnt used in photosynthesis or any of the other interesting things plants do.So hopefully by using red and blue lights the colours either side of the spectrum from green we should be able to keep plants happy and use less energy because where not producing green light which would just get reflected.apologies in advance, i cant seem to be able to get the tag thingys to work, i will try and explain s as best i can.
Bhai yeh wala bhi try karke dekh. They have them on higher wattage too.
than . Billion by , growing at a Compound Annual Growth Rate
Please can you tell me what values of resistors I am supposed to use so that I can light up all the LEDs brightly.
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But this is all for just the experiment, if you are planning to actually grow bigger quantities of harvest, I recommend that you grow for LED grow light panels or bulbs, which are easily available online and are much more cheap and energy efficient. Just hooking up a blue and red led is good for the project but market available products have a very finely tuned frequencies of the red and blue on the light spectrum. For a specific crop you would need a specific light frequency for optimal growth. And do not forget to turn of your lights for at least hours, the plants do need to sleep too.
This instrucle assumes you have experience with soldering, and have some basic knowledge of electronic circuits. There are instrucles elsewhere that should be able to teach you some of this stuff.Things you will needA Tub Twiglets not required, but reccoend on grounds of deliciousnessA smaller tub to grow things in.Tissue PaperStrip BoardHigh Brightness Red LEDs number depends on of tub and brightness, try some experimentingHigh Brightness Blue LEDs youll need fewer of these.Misc. Seeds Experiment with different kinds. cress works wellGlue ohm resistorsA power supply A bech top variable one is highly recommended, although others will workapologies for the shocking quality of the photos. im a poor student and cant afford a decent camera
I believe that if we carefully place single W high power LEDs at precise angles, we can penetrate the hidden under leaf parts of the plants better. check out my designs..
How are the results so r? From the s I noticed that you could also get rid of of your blue leds to make it a bit more energy efficient. And I think the first one may need more Red leds. to keep a plant of that going.
The LED grow light market is expected to rise to more
poor student? With those tools you dont look so poor Djk
thank you for your interest. you need minimum W high power LED lights, the regular mm LEDs used in this instrucle can only be used for seedlings but even then it is very weak. not enough lumens or wattage. you will find answer with the links above.!!
hello karan, this is a very old post of mine, please refer to these;
Below is a photo of a little spinach sprout that has been germinated and grown a few leaves using the LED lights.Having sprouted a few plants using this system i have transplanted them over to some compost on my windowsill as I didnt think my bench top supply would be too happy running /.Ive picked up some odds and ends today now my student loan has come through, so hopefully within the next few weeks Ill have a larger system set up with w LEDs and some nice microcontroller control, and quite possibly an instrucle documenting it all.
I dont know much about electronics Mechanical Engg so please bear with me. Last week I went to the electronics market and some guy there told me to use a k ohm resistor in series with one LED and hook it up to a V AC supply from the wall. I did that and it works!!! But unfortunately it works only for LEDs max in series.
Now for the best bit, actually using it..Place the tissue in the small tub and dampen with water, then sprinkle a few seeds ontop and place inside your LED growing tub..tun on..wait.eat delicious plants!depending on what your growing you may need to transplant the seeds into a better growing medium once they have germinated.During my first attempts at growing plants under LED lights, i grew cress in a bean can, and used a PIC microcontroller to turn it on and off every hours, this produced ilry good results, the cress grew quicker than some placed on my windowsill.After reading around a bit on the internet whether you agree with the use of a certain herb which is currently illegal in the uk or not, the people who grow it tend to be very knowledgeable on plant cultivation, and have a wealth of experience in growing plants under artificial lights i found talk of keeping lights on for hours during vegetative growth stages, then encouraging flowering by switching to hours on and hours off during, i dont know if this applies to all plants, but i shall be experimenting.Im still playing around with this so any suggestions/improvements are greatly appreciated, and if anybody decides to do this themselves i hope you do, its great fun i would love to hear about your results.
In this instrucle i shall be demonstrating how to grow small plants under the glorious glow of LED lights. Woop!
This step is irly straight forward.Take the glue and haphazardly glue the LEDs to the lid of your container of choice then plug it into a power supply and hope nothing blows upDISCLAIMER its not my ult if anything blows up.when nothing does blow up let out a sigh of relief and relish in the futuristic glow of your new LED grow light system!Note on voltages for the setup im using i found that volts was adequate to light all the LEDs and for nothing to get too hot, and for the current consumption to be adequate. YMMV. i strongly suggest using a variable power supply to find the optimum voltage.
Now I want to use the AC power supply to light up about LEDs and I dont want to use a transformer Again, not possible on student budget D P. Can you give me a minimalist circuit diagram and if possible parts list to get this done.
Hi there! Awesome project but grainy pictures. I am a student too, so I can totally understand Check out my instrucles theyve got the worst photos P. Anyway not straying away from topic, I am doing a similar project with LEDs.
Thank you for your instrucle and thanks in advance for all replies
There are a couple of ways to do this, in past experiments i have just drilled holes in bean cans/tubs then glued LEDs in place and wired them up by soldering wire between each one.In this incarnation i have chosen to build x LED modules, in the below is a very quickly scrawled diagram of how the LEDs are wired on the pieces of strip board.Once each module has been built they where wired in parallel to the power supply……..i wish i was better at explaining this.basically, as long as you have enough light coming from the LEDs and you are comforle with the way they have been wired, and most importantly nothing explodes or smells funny you should be ok. Its pretty really.Whatever you do, dont forget to include some form of current limiting resistor, if the first year and a half of my electronics degree is anything to go by, they seem rather important.With the of my tub i chose to use a x LED modules, giving a total of red LEDs, and only one blue LED.Why only one blue LED??After a bit of googleing sometime ago i stumbled on a i think NASA project to do with growing plants under LEDs, and they said you need a lot less blue light than red, and a biologist friend of mine confirmed this….and that is why there is only one blue light.Growing Plantsled lights With LED Lights