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Picture of Automated Low Watt LED Mini Greenhouse
In this instructable you will learn how to build a mini green house, with timed grow lights.

Step 1: Materials List

Picture of Materials List
You may not want or need as much insulation as I used. Its very cold where I live. It is not a thing of beauty and was build strictly to function as a place to start plants and extend our very short growing season. It hides in our garage.

So far it has been a constant 58 degrees inside the greenhouse. I have started only cold friendly plants. It likely gets a bit chillier when the lights go off.

Materials:

Many times you can find some of what you need for free on freecyle.org, reyooz.com, thinggo.com or trusty craigslist.org. A thrift store is another good place to check for some of these items.

Shelf with 5 shelves $50.00
8 LED grow light panels $240.00
Roll of sheet plastic $12.00
2 Power strips $10.00
2 Timers $14.00
1 Thermometer $ 2.50
Trays $3.00

Total: About 331.50 (plus tax)

Time of useful life. The only element I expect not to last for at least 10 years are the LED panels.

Things I had on hand:

old blanket
cotton cord
zip ties
staple gun
blinder clips
bubble wrap
duct tape
some lattice panel to
keep the barn cats out

Notes:

  • LEDWholesalers on ebay.com  2 orders - 900 LED Grow light 4 Red + Blue Hydroponic Lamp Panels. They have a few negative comments but for the most part they get 5 stars.
  • My shelf was a bargain apparently. I cant find these very cheap online.
  • Make sure the timers are the grounded type (three prong.)
  • The power strips plug into the timers.
  • The LED panels go into the power strips.
 
Good work! Can I suggest to buy just for a little more money a good anti-fungus black outside - white inside Polyethylen cover? Next step for you Hydroponics! Good luck with those little charms...