Setting up specialized grow lights that mimic the sun's rays is a good solution, but you can get similar results with LEDs. We connected three inside a clear plastic tube to make a "light spike" that you can stick into a pot for direct exposure, and added a controller that adjusts the brightness.
2.1-mm power-connector jack
100k-ohm slide potentiometer
Soldering iron and solder
White LED design kit
Five clear plastic tubes with endcaps
Five two-position connectors
15-volt 1A wall-mount power supply
Drill six holes in your project box to accommodate the various components, then assemble the controller by mounting the power-connector jack inside the box and the 10-position header and the 100k-ohm slide potentiometer on the box's sides.
Wire the box according to the circuitry diagram.
Cut the wire inside the LED design kit into five equal lengths. Attach the red wire to the red connector, and the black wire to the black connector, on each LED strip. Slip each strip inside a clear tube, and seal it with the endcaps so that it's watertight.
Add the two-position connectors that will hook up the tubes and the box. Attach each one to the red and black wires from each LED strip.
Press a spike into your plant container. Keep all wiring, electrical connections, and the LED strips away from soil and moisture.
Plug the spikes' two-position connectors into the control box's 10-position header, and connect the power supply to turn the LEDs on.
Adjust the slide potentiometer to control the brightness of the spikes, and watch your garden grow.
This project was excerpted from The Big Book Of Hacks: 264 Amazing DIY Tech Projects, a compendium of ingenious and hilarious projects for aspiring makers. Buy it here. And for more amazing hacks, go here.
Brace yourselves: potheads criticizing the amount of watts/lumens produced are coming
I'm not a pot head but yes this will not produce enough lumens for the plants.
You need several watts worth of LEDs and red and blue are best vs white if you want to nitpick about efficiency.
Or if you want to be cheap go buy a shop light for best results yes a grow light bulb but even common warm white will work just fine.
I so much enjoy growing plants. I did not know that LED emit or project the necessary light spectrum to help plants grow. This is good news for me!
Thanks PoPSCi for the info! ;)
Side note, make a choice to live a healthy life style and reduce you own problems in life. I do not encourage growing pot or anything else illegal, be healthy!
I agree with Ruri, this will not work well at all.
These are great for decoration, but you should buy a real grow light if you want the plants to live.
in order to thank everyone, characteristic, novel style, varieties, low price and good quality, and the low sale price. Thank everyone
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Sorry to say but not very good for high yields but still I would give a try to see how it turns out. I will let you know how good it is. If you are really interested, I would recommend to read this article www.advancednutrients.com/hydroponics/articles/hydroponics-gardening/how-to-get-the-most-benefit-from-your-led-grow-lights.php
I am sure you will find it helpful for growing because LED grow lights are one of the important factor.
Where is the circuitry diagram in step 2? :)