How to Wire a Motion Sensor to Multiple Lights

by Liz Gonzales

Home and property security is the go-to priority for every individual. With the dynamic nature of technology, you can install intelligent tools to maximize security for you and your family.

One of the tools under discussion here is the motion sensor. The technology detects any movement around your business or home. When an intruder comes closer to the sensor-targeted space, it responds by turning on the lights.

You, therefore, need to connect the light to this device for easier detection. Can you imagine how secure you will be when you employ multiple lights? You will be remarkably safe.

The installation process requires extensive electrical knowledge. However, with this guide, you will undoubtedly make the connection for your home like a pro.

In this guide, you will get insights into how to wire a motion sensor to multiple lights.

What are the benefits of wiring a motion sensor to multiple lights?

What are the benefits of wiring a motion sensor to multiple lights?
What are the benefits of wiring a motion sensor to multiple lights?

There is a pool of benefits that come with wiring a motion sensor to various lights. They include the following:

1. Security

The ultimate reason for connecting several lights to a single motion sensor is maximum security. We all need sound sleep when we are at our homes. The wiring might help you achieve that.

The lights will gleam your homestead and activate once the sensor detects any movement or peculiar objects.

2. Decor

Alongside the assured security, a motion sensor with multiple lights can act as decoration for your property.

The light activation establishes a fancy scene when exiting the house or strolling around the garden.

3. Conserves Energy

A single sensor with multi-purposes is the wisest decision for a homeowner. It consumes less energy. Therefore, fewer costs for you.

The wiring of a motion sensor to multiple lights favors economy users.

4. Fun and engaging activity

Wiring a motion sensor with multiple lights is also a fun activity. The activity outcomes will undoubtedly be worthwhile the high efforts and time.

To add a sense of luxury to your home, you might consider participating in this challenge.

5. Versatile

Motion sensor lights are not entitled to a single place in your home. You can set them up anywhere you would like. Be it in the garden, backyard, or even at the sides.

Tools required when wiring a motion sensor to multiple lights

It would help if you had the right tools to do a great job. Wiring a motion sensor with multiple lights might require you to have the following:

  • Motion sensor
  • Screwdriver options
  • Electrical tape
  • Wire connectors
  • Wire strippers
  • Voltage tester. You can go for the touch device.

You have most of these tools around you. You might purchase the necessary missing tools at the nearest physical store or online. You might need to have all these tools before initiating the wiring. 

Costs of wiring motion sensor to multiple lights

It is essential to analyze costs when handling any project. Wiring a motion sensor to multiple lights entirely depends on the fixture’s quality and the number of lights, the costs involved when wiring a motion sensor. The total cost might vary for different individuals.

The standard cost for putting multiple lights with a single sensor falls between $300 and $500. The highest price you might incur can be $550. 

Step by Step guideline on how to wire a motion sensor to multiple lights.

Now that we are familiar with the wiring benefits plus the costs and the required tools, let us go through the step-by-step guideline.

1. Preparing

Preparation is the critical initial step when wiring a motion sensor to multiple lights. You might consider kicking off the activity by turning off your circuit power to shun from electrical shocks. Remember to turn off the breaker. Leave the light switch.

Upon completing the steps, you can remove the light bulbs. Take them out from the fixture where you will mount the motion sensor.

2. Fixture disintegration

The step needs you to disassemble the different fixture components. You can use a screwdriver to do that.

Before reaching for the wire, it would be best to confirm the circuit’s status using a voltage tester. If no sound or light comes by, you can safely proceed with the disassembling.

3. Wire connection

At this step, you need to disconnect the wires. These are the connections that hold the fixture to the electrical cables or lead you to other parts.

4. Eliminating the knockouts

You can remove the knockout on the wall box that supports the sensor. You might use a hammer or a screwdriver when undertaking this step. The effective tool to use will depend on your preferred technique, either unscrewing or tapping.

5. Putting up the washer

The step involves dipping a rubber washer over the motion sensor wires. The washer might pass over the threaded nipple.

The step is optional. It is because some sensors might come with the washer during purchase.

6. Sensor mounting

After setting up everything, you can grip the wires and take them through the knockout hole. After doing that, you can begin screwing the motion sensor.

Make the screwing tight to minimize the risk of any potential issues. You can attach the sensor to the wall box with a lockout.

7. Wire preparation

The wire preparation step might be the strenuous part. Have a fresh mind when at this point. Utilize the wire strippers to get rid of insulation at the wire ends.

Most times, you can remove at least three-quarters inches to enhance a secure connection. Be keen on the different wire colors. There are white, red, and black wire colors rooting from the motion sensor.

Also, the next fixture has black, ground, and white wires. There are other wires, aka feed wires,  such as black, white, and ground wires that come out of the wall.

Now, connect the black wire from the wall with the other black wire on the motion sensor. Tighten using a wire connector and tape for perfect performance.

Link the white wall wire with a similar wire color present at the motion sensor. After that, connect the white wire leading to the next fixture with the current fixture wire. Finalize with tightening and taping.

Link up all the ground wires.

Connect the red wire of the sensor to the black one of the current fixtures. Then, link the black wire that takes you to the next fixture. Remember to secure the connection with a tape and screwdriver similar to the other cables.

8. Assembling all components

Put everything back in the box after completing the connections.

9. Last step

Fix your bulbs and activate the electric circuit. Put the switch on and leave it at that state for a while.

You can alter the sensitivity to your desired preference after the sun has set. 

Potential problems from wiring a motion sensor to multiple lights

Wrongful aims. If you are in a region with wildlife roams, the sensor might give you false alerts. When adjusting the sensitivity, ensure you set the correct targets.

The lights might fail to work when your sensor is dirty. You can clean your motion sensor with a wet rag to get accurate results.

Also, power outages or surges might affect your lighting. 


I bet you are super ready to wire a motion sensor to multiple lights with all this information. You can begin the practice with a smaller project to strengthen the skills.

Ensure you have the right tools and budget before the activity. Add beauty and maximize security in your home with this simple challenge.

About Liz Gonzales

Liz lives in a suburb in New York city.
Both of her parents are the art professors at Sate University of New York.
As such, Liz grew up with all kinds of art objects, portraits, and books laying around the home.
Liz met up with Linea through another friend in some kind of online art forum. There great minds sparkled to take their passions onto the next level @

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