Homemade Hydroponic Grow Lights


Growing plants indoors using hydroponic grow lights can enable you to prepare seedlings during winter and can yield consistent crop levels when growing indoor vegetables. A complete hydroponic system controls the water levels, humidity and light required to provide even growing conditions throughout the year. Professional hydroponic systems are often expensive to purchase and maintain but you can build relatively cheap and simple grow lights that can produce equally impressive results.

Step 1

Connect the electrical cable to the bulb connector on the reflector hood with the screwdriver. Connect the black wire to the live terminal and the white wire to the neutral terminal. The green or earth cable is connected to the green earth connector in the middle of the plug.

Step 2

Wire the mains plug to the electrical cable using the screwdriver. Make sure the bare wires are screwed to the corresponding terminals tightly and that the cable's outer shield is held firmly in place by the cable guard.

Step 3

Punch holes in the reflector hood with the hole punch. Make one hole at either end of the hood and ensure they are spaced apart equally. These holes are for the chain to suspend the finished light.

Step 4

Attach the chain to the reflector hood using a nut and bolt to fix each end. Ensure that when suspended by the chain the reflector hood hangs horizontally with the light bulb connector facing down.

Step 5

Screw the light bulb into the light bulb connector. Make sure that the mains plug is not connected to the electrical supply when you change light bulbs.

Step 6

Insert the mains plug into the timer switch and plug into the domestic power supply. The switch is used to automatically turn the light on and off at certain times and should be adjusted to provide the right amount of light depending on the plants growing cycle.

Things You'll Need

  • 1/4-inch flat head screwdriver
  • 1/8-inch hole punch
  • 2 1/8-inch bolts
  • 2 1/8-inc nuts
  • Reflector hood with bulb connector
  • 400w bulb
  • Power cable
  • NEMA 5-15 mains plug
  • Timer switch
  • 1m of picture hanging chain


  • Leeds Direct: Wiring an American Plug
Keywords: hydroponic grow lights, make hydroponic lights, DIY grow lights

About this Author

Currently a part-time freelance writer, Richard Boyd provides niche Web content for various clients via online forum sites and is an Ezine.com Expert Author. He has technical writing experience, having written training manuals for bespoke and commercial software applications. He lives in London, England.

Article provided by eHow Home & Garden | Homemade Hydroponic Grow Lights