Led Grow Light for Plants
by AlainsProjects in Living > Gardening
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Led Grow Light for Plants
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I’m doing a bigger experiment with plants. It will be a long time project.
So first of all I designed a led module witch is stackable
The Idea
![growled2.png](/proxy/?url=https://content.instructables.com/FFM/QLVE/JCAUS49Z/FFMQLVEJCAUS49Z.png&filename=growled2.png)
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First, I wanted to buy 2 or 3 Led grow lights, but they were too expensive or not what I needed. So I decided to build my own Led light
I designed my Idea in Sketchup 8 and with DipTrace I made the shematic and the board design.
It’s not the most complicated circuit, but I took the chance to design a PCB.
The PCB
![DSC_0879.JPG](/proxy/?url=https://content.instructables.com/FGY/K159/JCAUS4FQ/FGYK159JCAUS4FQ.jpg&filename=DSC_0879.JPG)
And here it is. A nice and practical PCB from china.
I added the gerber files, if you want to reproduce the pcb
Downloads
One Finished LED Module
![DSC_0983.JPG](/proxy/?url=https://content.instructables.com/FAB/LZPU/JCAUS47R/FABLZPUJCAUS47R.jpg&filename=DSC_0983.JPG)
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And here it is. One module has:
- 20 red led's
- 10 blue led's
- 10 resistors 240 Ohm
One module cost me about 5$
As calculated it takes at 12V 200mA and look at the nice pink spot :)
On the last picture you can see how easy you can stack the single led modules
The Gardening Work
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Now the gardening work.
This will be my first attempt to check if my growing light works. I use coir pellets witch provide a lot of substrate and as seed I use salad burnet herb. I took these seeds because of there size.
A small plastic Tupperware will work as a peel for my vegetables. With the addition of water, the pellets swell up. I press the earth over the seeds and put the whole thing under the light. Now I have to wait if it works or not. I also added a thermometer to check if it’s not to cold in my workshop.
Crossing fingers.
It Works
![DSC_1165.JPG](/proxy/?url=https://content.instructables.com/F57/BHX9/JCS4QGD1/F57BHX9JCS4QGD1.jpg&filename=DSC_1165.JPG)
After 7 days I had the confirmation that it works