How to Wire Low Voltage Downlights

Updated February 21, 2017

Installing low voltage lighting is a safe homeowner project because of the reduced levels of electricity. A typical low voltage lighting system uses a transformer to lower the power to 12 or 24 volts. These systems run on two wires. A black hot wire delivers the power to the light and a white neutral wire provides the path back to the source. Even through these lights use lower power, you should always work on conductors with the power turned off.

Turn off the power for the wires you are working on at your home's distribution panel. Double check the power is off by touching a non-contact voltage detector to the wire's insulation.

Strip 3/8 inches of insulation off the black, white and green wire coming from the source.

Loosen the terminals in the conductor cover with your screwdriver.

Insert the black source wire on the right side of terminal of the conductor cover and tighten it down. Connect the source white wire to the right side terminal and the green wire to the centre terminal.

Insert the light's black wire in the opposing terminal to the black source wire and tighten it down.

Insert the light's white wire in the opposing terminal to the white source wire and tighten it down. Close the conductor cover until it locks shut.

Things You'll Need

  • Non-contact voltage detector
  • Wire strippers
  • Conductor cover
  • Screwdriver
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About the Author

Bob White began his writing career in 2006. Working in sales, he was a technical writer tasked with responding to requests for proposal. White has a Bachelor of Arts in computer science and a diploma in home inspection. He has also worked in construction, landscaping and the pool industry for more than 15 years.