How To Wire A Day Night Switch

How To Wire A Day Night Switch

Are you tired of having to manually turn on and off your outdoor lights every morning and night? Installing a day night switch can make your life easier by automatically turning your lights on and off based on the time of day. In this blog post, we'll walk you through the steps to wire a day night switch and have your outdoor lights working on autopilot.

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  1. What is a Day Night Switch?
  2. Materials Needed
  3. Steps to Wire a Day Night Switch
    1. 1. Turn off Power
    2. 2. Choose a Location
    3. 3. Connect Wires to the Day Night Switch
    4. 4. Wire the Ground Wire
    5. 5. Test the Connections
  4. Conclusion

What is a Day Night Switch?

A day night switch is an electronic device that automatically turns on and off outdoor lights based on the amount of daylight in the area. It contains a light sensor that detects the presence or absence of light and triggers the switch to turn on or off accordingly. This means that you no longer have to manually control outdoor lights and can save energy and money by only using lights when needed.

Materials Needed

Before you begin wiring a day night switch, you will need the following materials:

  • Day Night Switch - Make sure to purchase a switch that is rated for the voltage and wattage of your outdoor lights.
  • Screwdriver - To loosen or tighten screws.
  • Wire Cutter/Stripper - To cut and strip wires.
  • Electrical tape - To secure wire connections.
  • Outdoor Lights - To connect to the day night switch.
  • Outdoor Electrical Box - To protect and contain electrical components.
  • Wires - Electrical wires to connect the switch to the lights.

Steps to Wire a Day Night Switch

1. Turn off Power

Before beginning any electrical work, ensure that power to the area is turned off. Locate the breaker that controls the outdoor lights and turn it off. Use a voltage tester to confirm that there is no electricity flowing to the switch or lights before proceeding.

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2. Choose a Location

Choose a suitable location to install the day night switch. It should be easily accessible for future maintenance and close to the outdoor lights. Install the outdoor electrical box and wiring accordingly.

3. Connect Wires to the Day Night Switch

Loosen the screws on the day night switch and strip the ends of the wires. Connect the white and black wires from the outdoor lights to the corresponding terminals on the switch. The white wire should be connected to the silver terminal and the black wire to the gold terminal. Use electrical tape to secure the connections.

4. Wire the Ground Wire

Connect the ground wire to the green screw on the day night switch. This wire is usually bare or green in color and should be connected securely to provide grounding protection.

5. Test the Connections

Once all connections are made, it is important to test them. Turn on the power to the area and check that the lights turn on when it becomes dark outside and turn off when it's light outside.


Wiring a day night switch allows you to have outdoor lights automatically turn on and off based on the time of day. By following these simple steps, you can have your outdoor lights wired and working within a short period of time. Remember to always prioritize safety when working with electricity and if you are unsure about any step, consult an electrician to avoid harm or damage to your property.

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